5.P.3.2 #2: Schoolnet (Heating & Cooling)

Which best describes how heat changes the state of a substance?

• Heat destroys the molecules in a substance.

• Heat steals the molecules from cold substances.

• Heat absorbs the molecules of a substance and releases them once they cool.

• Heat causes the molecules of a substance to spread out into a new arrangement.

Tags

NGSS.MS-PS1-4

Water is being boiled on the stove. What is the change that is taking place?

• A solid is changing into a gas.

• A liquid is changing into a gas.

• A solid is changing into a liquid.

Tags

NGSS.MS-PS1-4

Which best describes how heat is transferred?

• Heat only flows within individual substances.

• Heat flows from a warmer substance to a cooler substance.

• Heat flows from a cooler substance to a warmer substance.

• Heat flows in many different directions between substances.

Tags

NGSS.MS-PS3-3

When Joey put the milk away, he accidently put it in the freezer. The next

morning he tried to pour milk on his cereal and realized his mistake.

Which statement best explains what happened to the milk?

• The milk had frozen and became a solid.

• The milk had frozen and became a vapor.

• The milk had evaporated and became a solid.

• The milk had evaporated and became a vapor.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which best describes the purpose of the metal coils inside an oven?

• Metal heats easily, allowing for food to be cooked.

• Metal cools quickly, allowing for food to cool down.

• Metal absorbs heat from the food, which cools food down once it is cooked.

• Metal absorbs heat from the food, which keeps the food warm once it is cooked.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Which best explains why metal is a good material to make frying pans?

• Metal is a good conductor of heat and transfers heat from the stove

  to the food.

• Metal is a good conductor of heat and does not transfer heat from the stove to the food.

• Metal is a poor conductor of heat and transfers heat from the stove to

  the food.

• Metal is a poor conductor of heat and does not transfer heat from the stove to the food.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Alex and Jade are conducting an experiment to measure how the sun

affects the evaporation of water. Alex places 50mL of water in the shade.

Jade places 50mL of water in direct sunlight.

What will the students most likely observe?

• The water in the sun will be warmer, causing the water to evaporate

  more quickly.

• The water in the shade will be cooler, causing the water to evaporate

  more quickly.

• The water in the shade will be warmer, causing the water to

  evaporate more slowly.

• The water in the sun will be cooler, causing the water to evaporate

  more slowly.

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

Which most often occurs when a pot of water boils?

• condensation

• freezing

• melting

• evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Eric noticed that when he put ice in his glass of water, the ice floated.

Which best explains why this happens?

• When water freezes it contracts, making the ice lighter than the water.

• When water freezes the particles break down, making the ice lighter than water.

• When the water freezes, it turns into a solid, and all solids are lighter than liquids.

• When the water freezes it expands, making it a less dense mass

  that is lighter than water.

What happens when heat is removed from a substance?

• It melts.

• It dissolves.

• It condenses.

• It evaporates.

Tags

NGSS.MS-PS1-4