Front

What is the hardness scale of minerals numbered from?

Back

1-10

Front

How are the three groups of rocks classified?

Back

By how they form.

Front

What type of rock is formed in layers?

Back

Sedimentary.

Front

What type of rock starts as molten magma?

Back

Igneous.

Front

Where would you most likely find igneous rocks?

Back

Near a volcano.

Front

What are the three main types of rocks?

Back

Igneous, Sedimentary, Metamorphic.

Front

What is a characteristic of sedimentary rocks?

Back

They are formed from particles and organic material that accumulate in layers.

Front

What process forms metamorphic rocks?

Back

The alteration of existing rocks through heat and pressure.

Front

What is an example of an igneous rock?

Back

Basalt.

Front

What is the main difference between igneous and sedimentary rocks?

Back

Igneous rocks form from cooled magma or lava, while sedimentary rocks form from the accumulation of sediments.