Science Review

This is an example of _____.

• magnetism

• gravity

• melting

A ball falling back to the ground is an example of which force?

• magnetism

• gravity

• electricity

True or False: Objects that are smooth have LESS friction than objects that are rough.

• TRUE

• FALSE

The rougher the surface, the faster an object will travel over the surface.

• True (Think ice)

• False (Think sandpaper)

What state is ice?

• solid

• liquid

• gas

What happens to a peice of ice when it is heated?

• melts

• freezes

• evaporates

What state of matter is this?

• solid

• liquid

• gas

a. The water begins to get hot and bubbles appear. Steam forms above the pot. What state of matter is the steam?

• solid

• liquid

• gas

What causes day and night? 

• Sun's rotation
• Earth's rotation
• Moon's rotation

What causes the seasons? 

• The Sun going around the Earth
• Earth's revolution and tilted axis.