Unit 8 Heat Study Guide

Olivia and Isla are having a friendly debate about how energy is transferred in solids. Olivia claims that energy travels in both directions, while Isla insists that it only moves from hot to cold. Who's right?

• Olivia is right: heat travels in both directions.

• Neither: heat travels from the cooler object to the hotter object.

• Isla is right: heat travels from the hotter object to the cooler object.

• Neither: heat does not travel between objects of different temperatures.

Tags

NGSS.MS-PS1-4

Join Ethan, Kai, and Benjamin on an icy adventure in the tundra! Animals here have cool adaptations to survive the freezing temperatures. Did you know polar bears have thick coats of transparent fur that act like solar panels? The sunlight reflects onto their black skin, keeping them warm. Plus, they have thick layers of blubber. But how exactly does this blubber help them stay cozy?

• Blubber is waterproof.

• Blubber helps them float.

• Blubber is a good insulator.

• Blubber is a good conductor.

Harper and Emma are building a cozy fort with wool blankets. If wool is a good insulator, what substance would be a good conductor for their science project?

• cotton

• fur

• metal

• plastic

Tags

NGSS.MS-PS3-3

During a chilly winter evening, Aiden left his metal spoon in a steaming bowl of soup. To his surprise, the spoon became warm! Why did this happen?

• Metal is a conductor.

• Metal is an insulator.

Tags

NGSS.MS-PS1-4

Evelyn and Mia are planning a cooking contest! They need to choose the BEST material for heating up their delicious dishes. Which one should they pick?

• aluminum

• ceramic

• foam

• plastic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

On a sunny afternoon, Aiden and Aria are splashing around in a puddle on the driveway. As Aiden reaches down to touch the water, he exclaims, "Wow, this water is warm!" What could be the reason for the puddle being warm?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Oliver and Grace were camping when they noticed a puddle near their campfire. "Look!" said Oliver, "The puddle is getting warmer because of the fire."

• The puddle was heated by a fire burning nearby.

• The heat moved from the driveway to the puddle.

• Energy from the sun warmed the puddle of water.

• Friction from standing in the puddle warmed the water.

Tags

NGSS.MS-PS1-4

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Evelyn, Anika, and Samuel decided to have a water boiling contest! They each took turns heating four pots of water on a burner. Each pot had the same amount of water. The table shows the time, in seconds, that each pot was heated. Which pot ended up with the hottest water?

• Pot I

• Pot II

• Pot III

• Pot IV

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Aria and Rohan are helping their mom bake some delicious brownies. Their mom asks, "Which pan should I use if I want the brownies to bake quickly and cool down fast so we can eat them sooner?"

• metal pan

• glass pan

Tags

NGSS.MS-PS3-3

Abigail and Ava are building a cozy winter fort and want to make sure it stays warm inside. They decide to use fiberglass as an insulator in the walls and roof. Why would an insulator be needed inside their fort during the winter?

• It makes the fort look pretty.

• It keeps the heat inside of the fort.

• It keeps the heat outside of the fort.

• It keeps the cool air inside of the fort.

Tags

NGSS.MS-PS3-3