Heating and Cooling Pre-Assessment

When you put a marshmallow over a campfire, what happens to the marshmallow?

• It stays the same

• It gets cold

• It gets bigger

• It melts

Answer explanation

When a marshmallow is placed over a campfire, the heat from the fire causes it to melt.

Tags

NGSS.MS-PS1-4

If you leave a popsicle outside, what will happen to the popsicle?

• It will freeze

• It will melt

• It will stay the same

Answer explanation

If you leave a popsicle outside, it will be exposed to warmer temperatures, causing it to melt. The correct answer is that it will melt.

Tags

NGSS.MS-PS1-4

If you put water in the freezer what will happen to the water?

• It will evaporate

• It will freeze and turn into ice

• It will stay the same

• It will melt

Answer explanation

A freezer is cold and causes things like water to freeze. When water is placed into a freezer, it will turn into ice.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When heat is added to an object, what will happen to the object?

• The object will melt

• The object will get bigger

• The object will freeze

• The object will stay the same

Answer explanation

When heat is added to an object, it can cause the object to melt. This is especially true for objects like ice, which will melt into water when heated.

Tags

NGSS.MS-PS1-4

When an object is cooled, what happens to the object?

• The object melts

• The object will stay the same

• The object will melt and freeze

• The object can freeze

Answer explanation

When an object is cooled, it can freeze. For example, putting water in the freezer will cause it to freeze into ice because cooling was applied.

Tags

NGSS.MS-PS1-4