Exploring Types of Rocks

Exploring Types of Rocks

Read each question carefully and answer to the best of your ability. This worksheet will test your knowledge of the three main types of rocks: igneous, sedimentary, and metamorphic.

The Earth's crust is made up of rocks, which are naturally occurring solid masses. There are three main types of rocks, each formed through different geological processes:

1. Which type of rock is formed from the cooling and solidification of molten magma or lava?

2. Fossils are most commonly found in which type of rock?

3. The process by which rocks are broken down into smaller pieces by wind, water, or ice is called  .

4. When heat and pressure change an existing rock into a new type of rock, it becomes a   rock.

5. Molten rock that flows out onto the Earth's surface is called  , while molten rock beneath the surface is called magma.

6. All igneous rocks have large crystals because they cool slowly underground.

7. Sedimentary rocks are often found in layers.

Match the rock type to its description.

11. Describe one way an igneous rock can transform into a sedimentary rock.

12. Explain why metamorphic rocks often have a foliated (layered) appearance.