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evaporation can be used to separate a solution by allowing the solvent to evaporate
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if the solvent evaporates, the solute will be separated from the solution
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evaporation can be used to separate a solution by allowing the solvent to evaporate
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water is the solvent
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if the solvent evaporates, the solute will be separated from the solution
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salt is the solute
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water is a kind of liquid
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soil is made of solid particles
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a filter is used for separating liquid from solid particles
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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sand is always nonmagnetic
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iron is always magnetic
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iron filings are made of small pieces of iron
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steel cans are made of steels
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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aluminum cans are made of aluminums
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steel is always magnetic
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aluminum is always nonmagnetic
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sand is insoluble in water
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a filter is used for separating liquid from solid particles
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salt is soluble in water
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if something is soluble in something , then that something can be dissolved in something forming a solution
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if something is insoluble in something , then they will remain separated
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fruit is usually a solid
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salad is a mixture
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a mixture of solids can be separated easily
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fruit salad often is made of fruit
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fruit salad is a kind of salad
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iron filings are made of small pieces of iron
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iron is always magnetic
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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sand is always nonmagnetic
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sand is always nonmagnetic
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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iron is always magnetic
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iron is always magnetic
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iron filings are made of small pieces of iron
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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black pepper is always nonmagnetic
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denser particles in liquids settle below liquids that are less dense
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sand is denser than water
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if something is insoluble in something , then they will remain separated
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sand is insoluble in water
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iron is always magnetic
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glass is always nonmagnetic
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aluminum is always nonmagnetic
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plastic is always nonmagnetic
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magnet can be used for separating a magnetic material from a mixture of a magnetic and nonmagnetic material
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echo is when sound reflects off a smooth surface
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carpet has a rough surface
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a rough surface can absorb sound
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if sound is absorbed, then sound can not reflect off the surface
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plastic is durable
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air cannot pass through plastic
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plastic is microwave-safe
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airtight is when air cannot pass through something
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plastic is cheap
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if an object is durable , then that object will not break easily
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if an object is made of a material then that object has the properties of that material
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leather is a kind of material
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leather is resistant to water
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fiberglass is made of glass and plastic
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composite materials are made of two more more materials
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plastic is a kind of material
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glass is a kind of material
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metals usually have higher melting points than nonmetals
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metals usually have greater conductivity than nonmetals
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color is a kind of physical property
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color is a property of an object
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an apple is a kind of object
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colorless is a kind of color
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carbon dioxide is a kind of substance
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carbon dioxide is colorless
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color is a property of a substance
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density is a measure of mass of an object divided by volume
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a ratio is a measure of one value divided by another value
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helium is less dense than air
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if a container contains a substance with less density than air then that container may move upward
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a balloon is a kind of container
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a balloon is filled with helium gas
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less dense particles in liquids float on liquids that are more dense
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silt particles are floating in water
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wood is usually sturdy
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a table is a kind of furniture
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making furniture requires sturdy materials
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wood is a kind of natural material
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a greeting card requires paper that does not tear easily
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paper is a kind of object
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as the thickness of an object increases , the resistance of that object to tearing will increase
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the new material will last longer
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replacement of materials requires using money to buy new materials
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if something lasts longer then that something will not have to be replaced for a long time
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metal fork is made of metal
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metal is an electrical conductor
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metals usually have higher conductivity than nonmetals
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metal fork is made of metal
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metals usually have higher conductivity than nonmetals
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metal is an electrical conductor
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iron is a kind of metal
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metals usually have higher conductivity than nonmetals
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