Save the Penguins Test

You pick up a can of soda off the counter top. The counter top underneath the can feels colder than the rest of the counter. Which explanation do you think is the best?

• The cold has been transferred from the soda to the counter.
• There is no heat energy left in the counter beneath the can.
• Some heat has been transferred from the counter to the soda.
• The heat beneath the can moves away into other parts of the counter top.

Tags

NGSS.MS-PS1-4

After cooking an egg in boiling water, you cool the egg by putting it into a bowl of cold water. Which of the following explains the egg's cooling process?

• Temperature is transferred from the egg to the water.
• Cold moves from the water to the egg.
• Energy is transferred from the water to the egg.
• Energy is transferred from the egg to the water.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Why do we wear sweaters in cold weather?

• To keep cold out.
• To generate heat.
• To reduce heat loss.
• All of the above.

Amy wraps her dolls in blankets but can't understand why they don't warm up. Why don't they warm up?

• The blankets she uses are probably poor insulators.
• The blankets she uses are probably poor conductors.
• The dolls are made of materials which don't hold heat well.
• None of the above.

As water in a freezer turns to ice, 

• the water absorbs energy from the air in the freezer.
• the water absorbs the coldness from the air in the freezer.
• the freezer air absorbs heat from the water.
• the water neither absorbs nor releases energy.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

On a warm sunny day, you will feel cooler wearing light colored clothes because they

• reflect more radiation.
• prevent sweating.
• are not as heavy as dark clothes.
• let more air in.

If you put a metal spoon and a wooden spoon into a pot of boiling water, one will become too hot to touch. why?

• Metals conduct heat better than wood.
• Wood conducts heat better than metals.
• Metals pull in heat because the heat is attracted to metals.
• Wood isn't as strong as metals.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

On a hot day, the upstairs rooms in a house are usually hotter than the downstairs rooms. Why?

• Cool air is less dense than hot air.
• Warm air rises and cool air sinks.
• The upstairs rooms are closer to the sun.
• Heat rises.

Tags

NGSS.MS-ESS2-6

You have a can of soda in your lunchbox that you want to keep cold. Which material will work best to keep it cold.

• Aluminum foil wrapped around the soda because metals transfer heat energy easily.
• A paper towel wrapped around the soda because paper soaks up the moisture.
• Wax paper wrapped around the soda because wax paper traps the moisture.
• Your wool sweater wrapped around the soda because wool traps air.

Tags

NGSS.MS-PS3-3

When you hold a metal coat hanger in a camp fire to roast a marshmallow, the coat hanger might get too hot to hold. Why might the coat hanger get too hot?

• The heat radiates along the coat hanger.
• The heat builds up near the flame unit it can't hold it anymore and then moves along the coat hanger.
• Metal atoms vibrate with more energy when they get hot, and they collide with atoms near them, which makes the neighboring atoms vibrate too.
• Since metals melt in fire, they react very strongly to fire and get hot easily.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5