id stringlengths 24 24 | question stringlengths 1 270 | answer stringlengths 1 239 | documents listlengths 1 1 |
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56fa413bf34c681400b0c030 | What element makes up about 6% of the chemical composition of wood? | hydrogen | [
"Wood\n\nThe chemical composition of wood varies from species to species, but is approximately 50% carbon, 42% oxygen, 6% hydrogen, 1% nitrogen, and 1% other elements (mainly calcium, potassium, sodium, magnesium, iron, and manganese) by weight. Wood also contains sulfur, chlorine, silicon, phosphorus, and other el... |
56fa413bf34c681400b0c031 | About what percentage of wood is composed of nitrogen? | 1% | [
"Wood\n\nThe chemical composition of wood varies from species to species, but is approximately 50% carbon, 42% oxygen, 6% hydrogen, 1% nitrogen, and 1% other elements (mainly calcium, potassium, sodium, magnesium, iron, and manganese) by weight. Wood also contains sulfur, chlorine, silicon, phosphorus, and other el... |
56fa413bf34c681400b0c032 | Which element in wood composes about 42% of its weight? | oxygen | [
"Wood\n\nThe chemical composition of wood varies from species to species, but is approximately 50% carbon, 42% oxygen, 6% hydrogen, 1% nitrogen, and 1% other elements (mainly calcium, potassium, sodium, magnesium, iron, and manganese) by weight. Wood also contains sulfur, chlorine, silicon, phosphorus, and other el... |
56fa413bf34c681400b0c033 | What element joins potassium, calcium, manganese, iron, and sodium to make a combined 1% of the chemical composition of wood? | magnesium | [
"Wood\n\nThe chemical composition of wood varies from species to species, but is approximately 50% carbon, 42% oxygen, 6% hydrogen, 1% nitrogen, and 1% other elements (mainly calcium, potassium, sodium, magnesium, iron, and manganese) by weight. Wood also contains sulfur, chlorine, silicon, phosphorus, and other el... |
56fa4285f34c681400b0c039 | How many main components make up wood, not counting water? | three | [
"Wood\n\nAside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41โ43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers. It is mainly five-carbon sugars that are linked in an irregular manner, in ... |
56fa4285f34c681400b0c03a | What's the name for the crystalline polymer derived from glucose? | Cellulose | [
"Wood\n\nAside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41โ43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers. It is mainly five-carbon sugars that are linked in an irregular manner, in ... |
56fa4285f34c681400b0c03b | After cellulose, what component is most plentiful in wood? | hemicellulose | [
"Wood\n\nAside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41โ43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers. It is mainly five-carbon sugars that are linked in an irregular manner, in ... |
56fa4285f34c681400b0c03c | What kind of trees have about 30% hemicellulose? | conifers | [
"Wood\n\nAside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41โ43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers. It is mainly five-carbon sugars that are linked in an irregular manner, in ... |
56fa4285f34c681400b0c03d | Which of the three main components of wood is used to manufacture paper? | cellulose | [
"Wood\n\nAside from water, wood has three main components. Cellulose, a crystalline polymer derived from glucose, constitutes about 41โ43%. Next in abundance is hemicellulose, which is around 20% in deciduous trees but near 30% in conifers. It is mainly five-carbon sugars that are linked in an irregular manner, in ... |
56fa43e9f34c681400b0c043 | What component of wood determines whether it is hardwood or softwood? | lignin | [
"Wood\n\nIn chemical terms, the difference between hardwood and softwood is reflected in the composition of the constituent lignin. Hardwood lignin is primarily derived from sinapyl alcohol and coniferyl alcohol. Softwood lignin is mainly derived from coniferyl alcohol."
] |
56fa43e9f34c681400b0c044 | Which wood has lignin that comes primarily from one type of alcohol? | Softwood | [
"Wood\n\nIn chemical terms, the difference between hardwood and softwood is reflected in the composition of the constituent lignin. Hardwood lignin is primarily derived from sinapyl alcohol and coniferyl alcohol. Softwood lignin is mainly derived from coniferyl alcohol."
] |
56fa43e9f34c681400b0c045 | Which type of alcohol mainly becomes softwood lignin? | coniferyl | [
"Wood\n\nIn chemical terms, the difference between hardwood and softwood is reflected in the composition of the constituent lignin. Hardwood lignin is primarily derived from sinapyl alcohol and coniferyl alcohol. Softwood lignin is mainly derived from coniferyl alcohol."
] |
56fa43e9f34c681400b0c046 | In addition to coniferyl alcohol, what other alcohol is in hardwood lignin? | sinapyl | [
"Wood\n\nIn chemical terms, the difference between hardwood and softwood is reflected in the composition of the constituent lignin. Hardwood lignin is primarily derived from sinapyl alcohol and coniferyl alcohol. Softwood lignin is mainly derived from coniferyl alcohol."
] |
56fa43e9f34c681400b0c047 | Which kind of wood contains lignin derived from two main alcohol sources? | Hardwood | [
"Wood\n\nIn chemical terms, the difference between hardwood and softwood is reflected in the composition of the constituent lignin. Hardwood lignin is primarily derived from sinapyl alcohol and coniferyl alcohol. Softwood lignin is mainly derived from coniferyl alcohol."
] |
56fa455af34c681400b0c04d | What's the name for the low molecular weight organic compounds in wood? | extractives | [
"Wood\n\nAside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from... |
56fa455af34c681400b0c04e | Along with fatty acids, what kind of acids are in the extractives in wood? | resin | [
"Wood\n\nAside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from... |
56fa455af34c681400b0c04f | Wood extractives include resin and fatty acids, terpenes, and what other component? | waxes | [
"Wood\n\nAside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from... |
56fa455af34c681400b0c050 | What do conifers use rosin to protect themselves from? | insects | [
"Wood\n\nAside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from... |
56fa455af34c681400b0c051 | Along with tall oil and rosin, what commercial product do we get from wood's extractives? | turpentine | [
"Wood\n\nAside from the lignocellulose, wood consists of a variety of low molecular weight organic compounds, called extractives. The wood extractives are fatty acids, resin acids, waxes and terpenes. For example, rosin is exuded by conifers as protection from insects. The extraction of these organic materials from... |
56fa4690f34c681400b0c057 | What type of wood is preferred as fuel? | Hardwood | [
"Wood\n\nWood has a long history of being used as fuel, which continues to this day, mostly in rural areas of the world. Hardwood is preferred over softwood because it creates less smoke and burns longer. Adding a woodstove or fireplace to a home is often felt to add ambiance and warmth."
] |
56fa4690f34c681400b0c058 | What type of wood burns quickly and makes more smoke than hardwood? | softwood | [
"Wood\n\nWood has a long history of being used as fuel, which continues to this day, mostly in rural areas of the world. Hardwood is preferred over softwood because it creates less smoke and burns longer. Adding a woodstove or fireplace to a home is often felt to add ambiance and warmth."
] |
56fa4690f34c681400b0c059 | What type of areas use more wood for fuel? | rural | [
"Wood\n\nWood has a long history of being used as fuel, which continues to this day, mostly in rural areas of the world. Hardwood is preferred over softwood because it creates less smoke and burns longer. Adding a woodstove or fireplace to a home is often felt to add ambiance and warmth."
] |
56fa4690f34c681400b0c05a | What benefit besides the cozy atmosphere would a wood-burning fireplace add to a home? | warmth | [
"Wood\n\nWood has a long history of being used as fuel, which continues to this day, mostly in rural areas of the world. Hardwood is preferred over softwood because it creates less smoke and burns longer. Adding a woodstove or fireplace to a home is often felt to add ambiance and warmth."
] |
56fa49f9f34c681400b0c05f | What wood is decay-resistant when wet? | Elm | [
"Wood\n\nWood has been an important construction material since humans began building shelters, houses and boats. Nearly all boats were made out of wood until the late 19th century, and wood remains in common use today in boat construction. Elm in particular was used for this purpose as it resisted decay as long as... |
56fa49f9f34c681400b0c060 | What plumbing component was once made out of elm? | water pipe | [
"Wood\n\nWood has been an important construction material since humans began building shelters, houses and boats. Nearly all boats were made out of wood until the late 19th century, and wood remains in common use today in boat construction. Elm in particular was used for this purpose as it resisted decay as long as... |
56fa49f9f34c681400b0c061 | Until the late 19th century, what vessels were almost always wooden? | boats | [
"Wood\n\nWood has been an important construction material since humans began building shelters, houses and boats. Nearly all boats were made out of wood until the late 19th century, and wood remains in common use today in boat construction. Elm in particular was used for this purpose as it resisted decay as long as... |
56fa49f9f34c681400b0c062 | What significant purpose has wood been used for as long as humans have built shelters? | construction material | [
"Wood\n\nWood has been an important construction material since humans began building shelters, houses and boats. Nearly all boats were made out of wood until the late 19th century, and wood remains in common use today in boat construction. Elm in particular was used for this purpose as it resisted decay as long as... |
56fa49f9f34c681400b0c063 | Other than boats, what do people often build with wood? | houses | [
"Wood\n\nWood has been an important construction material since humans began building shelters, houses and boats. Nearly all boats were made out of wood until the late 19th century, and wood remains in common use today in boat construction. Elm in particular was used for this purpose as it resisted decay as long as... |
56fa4b89f34c681400b0c069 | What term is used in North America for wood used in construction? | lumber | [
"Wood\n\nWood to be used for construction work is commonly known as lumber in North America. Elsewhere, lumber usually refers to felled trees, and the word for sawn planks ready for use is timber. In Medieval Europe oak was the wood of choice for all wood construction, including beams, walls, doors, and floors. Tod... |
56fa4b89f34c681400b0c06a | Outside of North America, if someone said "lumber," to what would they be referring? | felled trees | [
"Wood\n\nWood to be used for construction work is commonly known as lumber in North America. Elsewhere, lumber usually refers to felled trees, and the word for sawn planks ready for use is timber. In Medieval Europe oak was the wood of choice for all wood construction, including beams, walls, doors, and floors. Tod... |
56fa4b89f34c681400b0c06b | What do people outside of North America call the sawn boards used for building? | timber | [
"Wood\n\nWood to be used for construction work is commonly known as lumber in North America. Elsewhere, lumber usually refers to felled trees, and the word for sawn planks ready for use is timber. In Medieval Europe oak was the wood of choice for all wood construction, including beams, walls, doors, and floors. Tod... |
56fa4b89f34c681400b0c06c | What was the preferred wood for construction in Medieval Europe? | oak | [
"Wood\n\nWood to be used for construction work is commonly known as lumber in North America. Elsewhere, lumber usually refers to felled trees, and the word for sawn planks ready for use is timber. In Medieval Europe oak was the wood of choice for all wood construction, including beams, walls, doors, and floors. Tod... |
56fa4b89f34c681400b0c06d | For modern solid wood doors, what wood is often used in addition to small-knotted pine or poplar? | Douglas fir | [
"Wood\n\nWood to be used for construction work is commonly known as lumber in North America. Elsewhere, lumber usually refers to felled trees, and the word for sawn planks ready for use is timber. In Medieval Europe oak was the wood of choice for all wood construction, including beams, walls, doors, and floors. Tod... |
56fa4d06f34c681400b0c073 | What type of construction is often used now to build homes in much of the world? | timber-framed | [
"Wood\n\nNew domestic housing in many parts of the world today is commonly made from timber-framed construction. Engineered wood products are becoming a bigger part of the construction industry. They may be used in both residential and commercial buildings as structural and aesthetic materials."
] |
56fa4d06f34c681400b0c074 | In addition to residential applications, what type of buildings often have engineered wood components? | commercial | [
"Wood\n\nNew domestic housing in many parts of the world today is commonly made from timber-framed construction. Engineered wood products are becoming a bigger part of the construction industry. They may be used in both residential and commercial buildings as structural and aesthetic materials."
] |
56fa4d06f34c681400b0c075 | Along with decorative components, what type of building materials can be engineered from wood? | structural | [
"Wood\n\nNew domestic housing in many parts of the world today is commonly made from timber-framed construction. Engineered wood products are becoming a bigger part of the construction industry. They may be used in both residential and commercial buildings as structural and aesthetic materials."
] |
56fa4d06f34c681400b0c076 | What industry benefits greatly from engineered wood products? | construction | [
"Wood\n\nNew domestic housing in many parts of the world today is commonly made from timber-framed construction. Engineered wood products are becoming a bigger part of the construction industry. They may be used in both residential and commercial buildings as structural and aesthetic materials."
] |
56fa4e5e8f12f31900630111 | What might wood be used for in a building made from brick or other materials? | supporting material | [
"Wood\n\nIn buildings made of other materials, wood will still be found as a supporting material, especially in roof construction, in interior doors and their frames, and as exterior cladding."
] |
56fa4e5e8f12f31900630112 | What crucial part of a house is often constructed from wood? | roof | [
"Wood\n\nIn buildings made of other materials, wood will still be found as a supporting material, especially in roof construction, in interior doors and their frames, and as exterior cladding."
] |
56fa4e5e8f12f31900630113 | Wood might be used to construct what exterior component of a building? | cladding | [
"Wood\n\nIn buildings made of other materials, wood will still be found as a supporting material, especially in roof construction, in interior doors and their frames, and as exterior cladding."
] |
56fa4e5e8f12f31900630114 | Inside a building, what wooden things might you open to enter or leave rooms? | doors | [
"Wood\n\nIn buildings made of other materials, wood will still be found as a supporting material, especially in roof construction, in interior doors and their frames, and as exterior cladding."
] |
56fa50008f12f31900630119 | What holds together an engineered wood product? | glue | [
"Wood\n\nEngineered wood products, glued building products \"engineered\" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with... |
56fa50008f12f3190063011a | Engineered wood products are often used in construction, but what other major type of applications do they have? | industrial | [
"Wood\n\nEngineered wood products, glued building products \"engineered\" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with... |
56fa50008f12f3190063011b | What requirements do engineered wood products meet? | application-specific performance requirements | [
"Wood\n\nEngineered wood products, glued building products \"engineered\" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with... |
56fa50008f12f3190063011c | What efficient type of unit does the process of "engineering" wood result in? | composite structural unit | [
"Wood\n\nEngineered wood products, glued building products \"engineered\" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with... |
56fa50008f12f3190063011d | Wood fibers from wood strands, lumber, and what other source can be glued together to make larger units? | veneers | [
"Wood\n\nEngineered wood products, glued building products \"engineered\" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with... |
56fa517b8f12f31900630123 | What category do composite panels, strand board, and plywood all fit into? | wood structural panels | [
"Wood\n\nThese products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of... |
56fa517b8f12f31900630124 | What's another word for glued laminated timber? | glulam | [
"Wood\n\nThese products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of... |
56fa517b8f12f31900630125 | What does LVL stand for? | laminated veneer lumber | [
"Wood\n\nThese products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of... |
56fa517b8f12f31900630126 | If current building trends continue, what material will be replaced by particle and fiber board? | plywood | [
"Wood\n\nThese products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of... |
56fa517b8f12f31900630127 | About how many cubic meters of wood was used in 1991 to make products like glulam, LVL, and structural composite lumber? | 100 million | [
"Wood\n\nThese products include glued laminated timber (glulam), wood structural panels (including plywood, oriented strand board and composite panels), laminated veneer lumber (LVL) and other structural composite lumber (SCL) products, parallel strand lumber, and I-joists. Approximately 100 million cubic meters of... |
56fa5330f34c681400b0c07b | What material results from chemically breaking down wood? | cellulose | [
"Wood\n\nWood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivat... |
56fa5330f34c681400b0c07c | What's the abbreviation for medium-density fiberboard? | MDF | [
"Wood\n\nWood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivat... |
56fa5330f34c681400b0c07d | How is wood broken down into chips and fibers? | mechanically | [
"Wood\n\nWood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivat... |
56fa5330f34c681400b0c07e | What type of flooring can be made from wood derivatives? | laminate | [
"Wood\n\nWood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivat... |
56fa5330f34c681400b0c07f | What widely-used product is almost always made of wood fibers? | paper | [
"Wood\n\nWood unsuitable for construction in its native form may be broken down mechanically (into fibers or chips) or chemically (into cellulose) and used as a raw material for other building materials, such as engineered wood, as well as chipboard, hardboard, and medium-density fiberboard (MDF). Such wood derivat... |
56fa5493f34c681400b0c085 | What category of products usually made from wood includes chairs? | furniture | [
"Wood\n\nWood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon."
] |
56fa5493f34c681400b0c086 | What wooden utensil could you stir a pot of soup with? | wooden spoon | [
"Wood\n\nWood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon."
] |
56fa5493f34c681400b0c087 | Which parts of tools are sometimes made out of wood? | handles | [
"Wood\n\nWood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon."
] |
56fa5493f34c681400b0c088 | What pieces of furniture that most people use every night can be made out of wood? | beds | [
"Wood\n\nWood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon."
] |
56fa5493f34c681400b0c089 | What special wooden utensils do many people use to eat Chinese takeout? | chopsticks | [
"Wood\n\nWood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon."
] |
56fa56e5f34c681400b0c08f | What could we monitor electronically that could help inform new methods of wood protection? | Moisture content | [
"Wood\n\nFurther developments include new lignin glue applications, recyclable food packaging, rubber tire replacement applications, anti-bacterial medical agents, and high strength fabrics or composites. As scientists and engineers further learn and develop new techniques to extract various components from wood, o... |
56fa56e5f34c681400b0c090 | Development in the wood manufacturing industry include using lignin to make what substance? | glue | [
"Wood\n\nFurther developments include new lignin glue applications, recyclable food packaging, rubber tire replacement applications, anti-bacterial medical agents, and high strength fabrics or composites. As scientists and engineers further learn and develop new techniques to extract various components from wood, o... |
56fa56e5f34c681400b0c091 | Instead of rubber, what important part of a car might someday be replaced by components of wood? | tire | [
"Wood\n\nFurther developments include new lignin glue applications, recyclable food packaging, rubber tire replacement applications, anti-bacterial medical agents, and high strength fabrics or composites. As scientists and engineers further learn and develop new techniques to extract various components from wood, o... |
56fa56e5f34c681400b0c092 | What material might be developed from wood that could make clothes that resist wear and tear? | high strength fabrics | [
"Wood\n\nFurther developments include new lignin glue applications, recyclable food packaging, rubber tire replacement applications, anti-bacterial medical agents, and high strength fabrics or composites. As scientists and engineers further learn and develop new techniques to extract various components from wood, o... |
56fa56e5f34c681400b0c093 | In addition to extracting components from wood, what might scientist do by adding components, for example, to make innovative products? | modify wood | [
"Wood\n\nFurther developments include new lignin glue applications, recyclable food packaging, rubber tire replacement applications, anti-bacterial medical agents, and high strength fabrics or composites. As scientists and engineers further learn and develop new techniques to extract various components from wood, o... |
56fa5855f34c681400b0c099 | Along with sculptures, what type of art have people been making out of wood for centuries? | carvings | [
"Wood\n\nWood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National... |
56fa5855f34c681400b0c09a | What did indigenous people in North America make out of the trunks of conifers? | totem poles | [
"Wood\n\nWood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National... |
56fa5855f34c681400b0c09b | What type of tree was often used for totem poles? | Western Red Cedar | [
"Wood\n\nWood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National... |
56fa5855f34c681400b0c09c | What city in Scotland would you visit to see the Millennium clock tower? | Edinburgh | [
"Wood\n\nWood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National... |
56fa5855f34c681400b0c09d | What museum exhibits the Millennium clock tower? | National Museum of Scotland | [
"Wood\n\nWood has long been used as an artistic medium. It has been used to make sculptures and carvings for millennia. Examples include the totem poles carved by North American indigenous people from conifer trunks, often Western Red Cedar (Thuja plicata), and the Millennium clock tower, now housed in the National... |
56fa59c2f34c681400b0c0a3 | What kind of wood are clarinet bodies made from? | african blackwood | [
"Wood\n\nCertain types of musical instruments, such as those of the violin family, the guitar, the clarinet and recorder, the xylophone, and the marimba, are traditionally made mostly or entirely of wood. The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and ... |
56fa59c2f34c681400b0c0a4 | What expensive wood with a prized color is used to make the backs of violins? | ripple sycamore | [
"Wood\n\nCertain types of musical instruments, such as those of the violin family, the guitar, the clarinet and recorder, the xylophone, and the marimba, are traditionally made mostly or entirely of wood. The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and ... |
56fa59c2f34c681400b0c0a5 | What category of wood is often used for musical instruments? | tonewoods | [
"Wood\n\nCertain types of musical instruments, such as those of the violin family, the guitar, the clarinet and recorder, the xylophone, and the marimba, are traditionally made mostly or entirely of wood. The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and ... |
56fa59c2f34c681400b0c0a6 | What's the common name for Picea abies? | European spruce | [
"Wood\n\nCertain types of musical instruments, such as those of the violin family, the guitar, the clarinet and recorder, the xylophone, and the marimba, are traditionally made mostly or entirely of wood. The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and ... |
56fa59c2f34c681400b0c0a7 | Along with resonance, what property of an instrument will be affected by the wood used to make it? | tone | [
"Wood\n\nCertain types of musical instruments, such as those of the violin family, the guitar, the clarinet and recorder, the xylophone, and the marimba, are traditionally made mostly or entirely of wood. The choice of wood may make a significant difference to the tone and resonant qualities of the instrument, and ... |
56fa5af68f12f3190063012d | What type of instruments with a misleading name aren't always made completely out of wood? | woodwind instruments | [
"Wood\n\nDespite their collective name, not all woodwind instruments are made entirely of wood. The reeds used to play them, however, are usually made from Arundo donax, a type of monocot cane plant."
] |
56fa5af68f12f3190063012e | What are woodwind instrument's reeds often made out of? | Arundo donax | [
"Wood\n\nDespite their collective name, not all woodwind instruments are made entirely of wood. The reeds used to play them, however, are usually made from Arundo donax, a type of monocot cane plant."
] |
56fa5af68f12f3190063012f | Is the Arundo donax a monocot or dicot cane plant? | monocot | [
"Wood\n\nDespite their collective name, not all woodwind instruments are made entirely of wood. The reeds used to play them, however, are usually made from Arundo donax, a type of monocot cane plant."
] |
56fa5af68f12f31900630130 | What objects do musicians have to have in order to play woodwind instruments? | reeds | [
"Wood\n\nDespite their collective name, not all woodwind instruments are made entirely of wood. The reeds used to play them, however, are usually made from Arundo donax, a type of monocot cane plant."
] |
56fa5c188f12f31900630135 | What wood is usually used for cricket bats? | white willow | [
"Wood\n\nMany types of sports equipment are made of wood, or were constructed of wood in the past. For example, cricket bats are typically made of white willow. The baseball bats which are legal for use in Major League Baseball are frequently made of ash wood or hickory, and in recent years have been constructed fr... |
56fa5c188f12f31900630136 | Ash and hickory are often used for baseball bats to comply with the rules of what organization? | Major League Baseball | [
"Wood\n\nMany types of sports equipment are made of wood, or were constructed of wood in the past. For example, cricket bats are typically made of white willow. The baseball bats which are legal for use in Major League Baseball are frequently made of ash wood or hickory, and in recent years have been constructed fr... |
56fa5c188f12f31900630137 | What is commonly used for the basketball courts the NBA plays on? | parquetry | [
"Wood\n\nMany types of sports equipment are made of wood, or were constructed of wood in the past. For example, cricket bats are typically made of white willow. The baseball bats which are legal for use in Major League Baseball are frequently made of ash wood or hickory, and in recent years have been constructed fr... |
56fa5c188f12f31900630138 | What wood has recently started being used to make baseball bats in addition to hickory and ash? | maple | [
"Wood\n\nMany types of sports equipment are made of wood, or were constructed of wood in the past. For example, cricket bats are typically made of white willow. The baseball bats which are legal for use in Major League Baseball are frequently made of ash wood or hickory, and in recent years have been constructed fr... |
56fa5c188f12f31900630139 | Compared to hickory and ash, what adjective might be used for a maple baseball bat? | fragile | [
"Wood\n\nMany types of sports equipment are made of wood, or were constructed of wood in the past. For example, cricket bats are typically made of white willow. The baseball bats which are legal for use in Major League Baseball are frequently made of ash wood or hickory, and in recent years have been constructed fr... |
56fa5e2df34c681400b0c0ad | What pieces of equipment for shooting arrows used to be wooden? | archery bows | [
"Wood\n\nMany other types of sports and recreation equipment, such as skis, ice hockey sticks, lacrosse sticks and archery bows, were commonly made of wood in the past, but have since been replaced with more modern materials such as aluminium, fiberglass, carbon fiber, titanium, and composite materials. One notewor... |
56fa5e2df34c681400b0c0ae | Which pieces of ice hockey equipment were once made out of wood? | sticks | [
"Wood\n\nMany other types of sports and recreation equipment, such as skis, ice hockey sticks, lacrosse sticks and archery bows, were commonly made of wood in the past, but have since been replaced with more modern materials such as aluminium, fiberglass, carbon fiber, titanium, and composite materials. One notewor... |
56fa5e2df34c681400b0c0af | When the golf club called the "wood" was actually made out of it, what type of wood was used? | persimmon | [
"Wood\n\nMany other types of sports and recreation equipment, such as skis, ice hockey sticks, lacrosse sticks and archery bows, were commonly made of wood in the past, but have since been replaced with more modern materials such as aluminium, fiberglass, carbon fiber, titanium, and composite materials. One notewor... |
56fa5e2df34c681400b0c0b0 | What is the golf club known as the "wood" usually made out of today? | synthetic materials | [
"Wood\n\nMany other types of sports and recreation equipment, such as skis, ice hockey sticks, lacrosse sticks and archery bows, were commonly made of wood in the past, but have since been replaced with more modern materials such as aluminium, fiberglass, carbon fiber, titanium, and composite materials. One notewor... |
56fa5e2df34c681400b0c0b1 | What other modern material has joined composites, carbon fiber, titanium, and aluminum to replace wood in the manufacture of sporting equipment? | fiberglass | [
"Wood\n\nMany other types of sports and recreation equipment, such as skis, ice hockey sticks, lacrosse sticks and archery bows, were commonly made of wood in the past, but have since been replaced with more modern materials such as aluminium, fiberglass, carbon fiber, titanium, and composite materials. One notewor... |
56fa621f8f12f3190063013f | What component of wood is degraded by bacteria that scientists are still trying to learn about? | cellulose | [
"Wood\n\nLittle is known about the bacteria that degrade cellulose. Symbiotic bacteria in Xylophaga may play a role in the degradation of sunken wood; while bacteria such as Alphaproteobacteria, Flavobacteria, Actinobacteria, Clostridia, and Bacteroidetes have been detected in wood submerged over a year."
] |
56fa621f8f12f31900630140 | What type of bacteria are present in Xylophaga? | Symbiotic | [
"Wood\n\nLittle is known about the bacteria that degrade cellulose. Symbiotic bacteria in Xylophaga may play a role in the degradation of sunken wood; while bacteria such as Alphaproteobacteria, Flavobacteria, Actinobacteria, Clostridia, and Bacteroidetes have been detected in wood submerged over a year."
] |
56fa621f8f12f31900630141 | What type of wood is it possible the bacteria in Xylophaga help break down? | sunken | [
"Wood\n\nLittle is known about the bacteria that degrade cellulose. Symbiotic bacteria in Xylophaga may play a role in the degradation of sunken wood; while bacteria such as Alphaproteobacteria, Flavobacteria, Actinobacteria, Clostridia, and Bacteroidetes have been detected in wood submerged over a year."
] |
56fa621f8f12f31900630142 | How long was the wood submerged in water in the study that discovered the types of bacteria in it? | over a year | [
"Wood\n\nLittle is known about the bacteria that degrade cellulose. Symbiotic bacteria in Xylophaga may play a role in the degradation of sunken wood; while bacteria such as Alphaproteobacteria, Flavobacteria, Actinobacteria, Clostridia, and Bacteroidetes have been detected in wood submerged over a year."
] |
56fa621f8f12f31900630143 | What bacteria starting with the letter "F" were found in wood after it was underwater for more than a year? | Flavobacteria | [
"Wood\n\nLittle is known about the bacteria that degrade cellulose. Symbiotic bacteria in Xylophaga may play a role in the degradation of sunken wood; while bacteria such as Alphaproteobacteria, Flavobacteria, Actinobacteria, Clostridia, and Bacteroidetes have been detected in wood submerged over a year."
] |
56f9f848f34c681400b0bf0b | What language family is Somali a part of? | Afro-Asiatic | [
"Somalis\n\nSomalis (Somali: Soomaali, Arabic: ุตูู
ุงูโ) are an ethnic group inhabiting the Horn of Africa (Somali Peninsula). The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afro-Asiatic family. They are predominantly Sunni Muslim. Ethnic Somalis number aro... |
56f9f848f34c681400b0bf0c | What part of the Afro-Asiatic language family is Somali a part of? | Cushitic | [
"Somalis\n\nSomalis (Somali: Soomaali, Arabic: ุตูู
ุงูโ) are an ethnic group inhabiting the Horn of Africa (Somali Peninsula). The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afro-Asiatic family. They are predominantly Sunni Muslim. Ethnic Somalis number aro... |
56f9f848f34c681400b0bf0d | What is the majority religion of Somalis? | Sunni Muslim | [
"Somalis\n\nSomalis (Somali: Soomaali, Arabic: ุตูู
ุงูโ) are an ethnic group inhabiting the Horn of Africa (Somali Peninsula). The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afro-Asiatic family. They are predominantly Sunni Muslim. Ethnic Somalis number aro... |
56f9f848f34c681400b0bf0e | How many people of Somali ethnicity live in Somalia? | 12.3 million | [
"Somalis\n\nSomalis (Somali: Soomaali, Arabic: ุตูู
ุงูโ) are an ethnic group inhabiting the Horn of Africa (Somali Peninsula). The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afro-Asiatic family. They are predominantly Sunni Muslim. Ethnic Somalis number aro... |
56f9f848f34c681400b0bf0f | What country has the second largest Somali population? | Ethiopia | [
"Somalis\n\nSomalis (Somali: Soomaali, Arabic: ุตูู
ุงูโ) are an ethnic group inhabiting the Horn of Africa (Somali Peninsula). The overwhelming majority of Somalis speak the Somali language, which is part of the Cushitic branch of the Afro-Asiatic family. They are predominantly Sunni Muslim. Ethnic Somalis number aro... |
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