Which of the following is NOT a source of heat?
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  • friction
  • electricity
  • water
  • the sun
A/an ________________ allows heat to move through it easily.
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  • temperature
  • thermal energy
  • conductor
  • insulator
_____________ is the tool used to measure temperature.
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  • A thermometer
  • A scale
  • A ruler
  • none of the above
If you dropped a hot rock in a bucket of cold water, the rock will _____________________________.
  • melt
  • stay the same temperature
  • become cooler
  • become hotter
You can produce heat energy by ___________ wood in a fireplace or campfire.
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  • mixing
  • burning
  • conducting
  • insulating
Temperature and Heat are the same thing?
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  • True
  • False
Rubbing your hands together on a cold winter day produces heat through ______________.
  • electricity
  • chemical reactions
  • the sun
  • friction
Which of the following materials would be the best​ conductor of heat?
  • Plastic
  • Metal
  • Stone
  • Wood
Which characteristic of wax makes it a good choice for making candles?
  • It is moist.
  • It burns yellow.
  • It melts easily.
  • It is lightweight.
The picture shows yarn made from wool.Why is wool good to use for making clothes?
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  •  It burns easily.
  •  It shrinks when it gets wet.
  •  It blocks out cold wind and holds heat inside.
  • It comes from an animal.
Why do plants need the sun?
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  • It lights them up.
  • It keeps them warm
  • It helps them hold onto water
  • It helps them make food
What does the sun do at night? 
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  • It goes dark
  • It lights up another solar system
  • It keeps shining on the other half of the earth
  • It goes to bed
What are the three fossil fuels?
  • coal, oil, and natural gas
  • solid, liquid, and gas
  • sedimentary, igneous, and metamorphic
  • fire, ice, and snow
What is our most important form of light energy?
  • a lamp
  • the moon
  • the sun
  • a candle
Without the sun's heat, what would happen to earth?
  • aliens would invade
  • the earth would explode
  • it would be too cold to survive
What is a conductor?
  • a material that heat moves through easily
  • a material that heat does not move through easily
  • a material that turns cold when heated
  • a tool for measuring temperature
What is an insulator?
  • a material that heat moves through easily
  • a material that heat does not move through easily
  • a material that turns cold when heated
  • a tool for measuring temperature
What temperature is shown on the thermometer?
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  • 24°F
  • 24°C
  • 20°F
  • 30°C
What happens when you are out in the sun too long?
  • sunburn
  • get chills
  • have fever
Things that are made out of metal are good _________.
  • conductors
  • insulators
Things made out of cloth, wood and plastic are good _____.
  • conductors
  • insulators
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