PS.5.1.3 (5.P.3.2) #5: Schoolnet (Heating & Cooling)

Tires for cars, bicycles and lawn mowers are made of rubber. Which best

explains why tires are made of rubber?

• Rubber can be dyed many different colors.

• Rubber can withstand heat caused by friction.

• Rubber can be molded into many different shapes.

Mandy is helping her mom cook. She takes a glass casserole dish directly

from the refrigerator and puts it in the oven. Which best explains the

result of putting the cold dish in the hot oven?

• The dish cracks or breaks.

• The dish quickly changes color.

• The dish contracts and shrinks.

• The dish stays cool and will not warm.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which best explains what happens to most materials when they are

heated?

• They expand.

• They contract.

• They change color.

• They double in size.

Tags

NGSS.MS-PS1-4

Jack placed his wooden baseball bat in the sun. The bat cracked open

along the center. What is the most likely reason for this happening?

• The wooden bat cools in the sun.

• The wooden bat evaporates in the sun.

• The sun’s heat causes the wooden bat to expand.

• The sun’s heat causes the wooden bat to contract.

Tags

NGSS.MS-PS1-4

Which best explains why a hot air balloon rises into the air?

• As the air is cooled, it becomes more dense and the balloon rises.

• As the air is cooled, it becomes less dense and the balloon rises.

• As the air is heated, it becomes less dense and the balloon rises.

Tags

NGSS.MS-PS1-4

Jim wakes up early in the morning and walks from his carpeted bedroom

to the tiled kitchen. Which best describes why, despite being the same

temperature, the tile floor feels cooler to his feet than the carpet?

• Tile is a poor conductor of heat and transfers heat to his skin.

• Carpet is a bad conductor of heat and transfers heat to his skin.

• Tile is a better conductor of heat and transfers heat away from his skin.

Billy’s mom is having a hard time opening a jar of jelly. Billy tells his

mom to hold the jar lid under water for a short period of time.

Which best explains the water temperature Billy’s mom should use and

why this would help?

• Hot water warms the lid and causes it to contract, making it easier to

  open.

• Hot water warms the lid and causes it to expand, making it easier to

  open.

• Cold water cools the lid and causes it to contract, making it easier to

  open.

• Cold water cools the lid and causes it to expand, making it easier to

  open.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement best explains why engineers leave space between

sections when building a bridge?

• A bridge without spaces will expand during a hot day and possibly crack.

• A bridge without spaces will expand during a cold day and possibly crack.

• A bridge without spaces will contract during a hot day and possibly crack.

• A bridge without spaces will contract during a cold day and possibly crack.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which best explains how candle wax is shaped into a mold?

• Heat is added to candle wax to melt it so it is more flexible and can take the shape of the mold.

• Heat is added to candle wax to melt it so it is less flexible and can

  take the shape of the mold.

• Cold is taken away from candle wax so it is more flexible and can

  take the shape of the mold.

• Cold is taken away from candle wax so it is less flexible and can take

  the shape of the mold.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which characteristic of wax makes it a good choice for making candles?

• It is moist.

• It burns yellow.

• It melts easily.

• It is lightweight.