sentences
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sound travels fastest through solid
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a rock is usually a solid
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sound travels fastest through solid
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potholders are used to remove hot pans from an oven
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removing hot objects from a heat source requires thermal insulators
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an oven is a source of heat
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a pan is a kind of object
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adding heat to something means trasferring heat to that something
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steam is hot in temperature
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a hot substance is a source of heat
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cooking food requires adding heat energy to the food
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a source of heat can be used to heat something
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the pan is a source of heat
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a spoon sometimes is made of metal
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metal is a thermal conductor
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if one object touches something then one is exposed to that something
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a metal spoon is touching the pan
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if a thermal conductor is exposed to a source of heat then that conductor may become hot / warm
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thermal conduction is when heat flows from warmer object to cooler object
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when a cooler object touches a warmer object , thermal conduction occurs
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a spoon sometimes is made of metal
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a hot substance is a source of heat
1
if a thermal conductor is exposed to a source of heat, then thermal conduction will make the thermal conductor become hot
1
metal is a thermal / thermal energy conductor
1
soup is a kind of substance
1
a metal spoon is placed in a pot of hot soup
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a hot substance is a source of heat
1
a spoon sometimes is made of metal
1
a metal spoon is placed in a pot of hot soup
1
if a thermal conductor is exposed to a source of heat, then thermal conduction will make the thermal conductor become hot
1
soup is a kind of substance
1
metal is a thermal / thermal energy conductor
1
a metal spoon is placed in a pot of hot soup
1
if a thermal conductor is exposed to a source of heat, then thermal conduction will make the thermal conductor become hot
1
soup is a kind of substance
1
a spoon sometimes is made of metal
1
metal is a thermal / thermal energy conductor
1
a hot substance is a source of heat
1
thermal conduction is when materials conduct heat through those materials through collision of particles
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thermal conduction is when heat flows from warmer object to cooler object
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radiation is a kind of process
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fire transfers heat through radiation
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a campfire is a kind of fire
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radiation is when heat is transferred through waves / particles
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the sun transfers heat energy from itself to the planets / earth through sunlight
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the sun is the source of energy for life on earth
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sunlight is a kind of light
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electromagnetic radiation transfers heat and light energy by radiation
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sunlight passes the windows of a car and heat up the car seat
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sunlight can shine through a window
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light is a kind of electromagnetic radiation
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sunlight is a kind of light
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the sun transmits light to earth through space
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light is a kind of electromagnetic wave
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radiation is when electromagnetic waves transfers heat and light energy
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electromagnetic radiation distorts the frequency of the radio waves
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lightning produces electromagnetic radiation of a wide range
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lightning occurs during lightning storms / thunderstorms
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tossing a ball in the air cannot form a source of vibration
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a wave is formed by the vibration of the source spreading around from the source
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interruption of a radio signal is similar to distortion of a radio signal
1
electromagnetic radiation distorts the frequency of the radio waves
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interruption of a radio signal causes a buzzing sound
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radio signal is a kind of radio wave
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electromagnetic radiation is made of electromagnetic waves
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a surface is a kind of object
1
the waves in the pond strike the edge of the pond
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edge of a pond is a kind of surface
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reflection is when a wave bounces off a surface and travels in the opposite direction relative to the angle of incidence
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if something strikes an object then that something may bounce off of that object
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sound waves transfer energy
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x-rays transfer energy
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transverse waves cause objects to move perpendicular to the direction of the wave
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a particle is a kind of object
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a bus is a kind of vehicle
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if two balanced forces act on an object in opposite directions then that object will remain stationary
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if vehicle is parked then that vehicle is stationary
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a vehicle is a kind of object
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wheels are a part of roller skates
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blacktop is made of asphalt concrete
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a wheeled vehicle requires smooth surfaces
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a wheeled vehicle is a kind of vehicle with wheels
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a roller skate is a kind of vehicle
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asphalt has a smooth surface
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friction occurs when two object 's surfaces move against each other
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a tire is a kind of object
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if the tire overheats, some chemical in the tire will vaporized
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skidding is when the tire of a vehicle slides on the road without rotating
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a surface is a part of an object
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a chemical is a kind of substance
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if the temperature of the tire keeps increasing, the tire will overheat
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if somethings slides on something else then that something is moving against that something else
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friction causes the temperature of an object to increase
1
a road is a kind of object
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vaporizing a substance causes smoke
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wood has a smooth surface
1
friction occurs when two object 's surfaces move against each other
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as the friction increases, friction will decrease the speed of the object more
1
as roughness of a surface increases , friction will increase
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carpet has a rough surface
1