Rocks Test Review

1. Intrusive igneous rocks are formed from lava that has cooled quickly.

• True
• False

2. The rock cycle is a model or diagram created by scientists to describe how the different types of rocks form and change over time.

• True
• False

3. The term organic means that a rock contains the remains of once-living things.

• True
• False

4. Magma is melted rock that has reached Earth’s surface.

• True
• False

5. Igneous rocks form from heat and pressure.

• True
• False

6. Erosion is a natural process that causes rocks to change, break down, and crumble.

• True
• False

7. Sedimentary rock can be heated and squeezed to form metamorphic rock.

• True
• False

8. A circulating flow of air or water resulting from temperature differences is called a convection cell.

• True
• False

9. Rocks that are formed when melted rock cools and hardens are called _________.

• igneous
• metamorphic
• foliated
• sedimentary

11. All rocks are made from this naturally occurring, solid, crystal substance called a _____________________.

• intrusive
• chemical
• organic
• mineral