Igneous rocks form when...

1.   ?    melted rock cools and hardens
2.   ?    other kinds of rocks are heated or under pressure.
3.   ?    small pieces of rock and sediment are cemented together.
4.   ?    all of the above

Metamorphic rocks form when...

1.   ?    melted rock cools and hardens.
2.   ?    other kinds of rocks are heated or under pressure.
3.   ?    small pieces of rock and sediment are cemented together.
4.   ?    all of the above

Sedimentary rocks form when...

1.   ?    melted rock cools and hardens.
2.   ?    other kinds of rocks are heated or under pressure.
3.   ?    small pieces or rock and sediment are cemented together.

Surface evidence that proves there are great forces under the crust are...

1.   ?    mountains.
2.   ?    volcanoes.
3.   ?    earthquakes.
4.   ?    all of the above

Where do most of the actions that change the earth's crust take place?

1.   ?    in the center of the plates
2.   ?    at the edges of the plates
3.   ?    at the base of a volcano
4.   ?    underneath the plates

New rocks are being formed and old rocka are wearing away. This will cause...

1.   ?    an abundance of rocks to build up on the earth's surface.
2.   ?    a decrease in rocks and soil on the earth's surface.
3.   ?    the amount of rock on the earth's surface to stay about the same.
4.   ?    earthquakes.

Weathering breaks apart and changes rocks.

1.   ?    True
2.   ?    False

What gives topsoil its dark color and minerals needed for plant growth?

1.   ?    acid
2.   ?    humus
3.   ?    climate
4.   ?    fossil fuels

Erosion and weathering are exactly the same.

1.   ?    True
2.   ?    False

Some forces build up the earth's surface, others wear it down.

1.   ?    True
2.   ?    False