Understanding Heat Energy

Radien plays on the school playground during the hot summer day. He tries to play on the metal merry-go-round but it is too hot. What question will best help Raiden understand why the merry-go-round is too hot?

• Is the merry-go-round completely round?

• Is the sun shining on the merry-go-round?

• Are there other merry-go-rounds to play on?

• Are there other children on the merry-go-round?

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King’s class is learning about heat energy. It can cause objects to change temperature. King thinks the color of an object affects how quickly it changes temperature. The class does an experiment to test this idea. They choose four different colors of paper they want to test. They fold each different-colored paper and place a thermometer inside of each. They record the beginning temperature and put the paper outside in the hot sun for 2 hours. After two hours, they record the temperature again. What is the heat source for King’s class’s experiment?

• Electricity

• Burning

• Friction

• Sunlight

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NGSS.MS-PS3-4

Khalil is sliding boards across the floor. He decides to put the boards on wheels to slide faster. Which will most likely happen if he puts the boards on wheels?

• There will be more friction produced and the boards will feel warmer?

• There will be less friction produced and the boards will feel warmer?

• There will be less friction produced and the boards will feel cooler?

• There will be more friction produced and the boards will feel cooler?

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Which question will help Kyree understand that sunlight is a source of heat energy?

• Why can rubbing two pieces of wood together create fire?

• Why does a hot stove make water boil?

• Why does a bike’s tires feel warm after riding?

• Why would ice cubes melt in a glass outside?

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Reagan and Ryan are riding their bikes.  After riding them for 45 minutes around the new neighborhood, Reagan checks the temperature of Ryan’s tire. What is Reagan most likely trying to find out?

• How much heat energy is caused by friction?

• How much does the sun heat the yard?

• How far can they last on their bikes?

• Who can go the fastest, Reagan or Ryan?

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NGSS.MS-PS1-4

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Ivy pushed a Christmas gift across a tile floor. Then she pushed it across a carpeted floor. Which most likely caused the bottom of the gift to have a higher temperature, and why?

• The carpet because it created more heat, which created more friction

• The carpet because it created more friction, which created more heat

• The tile because it created less heat, which created more friction

• The tile because it created less friction, which created more heat energy.

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NGSS.MS-PS1-4

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The pictures below show a bike stopping hard and fast on a road. Which of the following is correct about the back tires of the bike?

• 1. The tires melted on the road to create heat. 

• 1. The tires rubbed on the road to create heat. 

• The tires mixed with the road to create heat.

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The pictures below show the temperatures on thermometers at 2:00 pm on the same day. Why did group 1 thermometer and group 2 thermometer show different results?

• Different units of measurement are used.

• Measurements are taking at different times of day

• Different thermometers are used

Camron and Jayden were playing at the beach on a hot, sunny day. Jayden had on a white shirt and Camron had on a black shirt. Why was Camron hotter than Jayden?

• Dark colors repeal (push away) heat.

• Dark colors attract (take in) heat.

• Camron was closer to the sun than Jayden.

• Jayden is smaller than Camron.

What question can Mrs. Turnipseed ask to find out if friction is a source of heat?

• Why do ice cubes melt?

• Do objects feel warmer if you rub them together?

• Does water boil if you leave it on the stove?

• Will snow melt if it gets warm?

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