1. Obsidian is a(n) 
A igneious rock.
B sedimentary rock.
C metamorphic rock.
2. Mount St. Helens is:
A active.
B dormant.
C inactive.
3. A good sample of mannodknocks are:
A the Rocky Mountains.
B the Blue Ridge Mountains.
C the Himalayas.
4. This is used in film development:
A silver.
B gold.
C aluminum.
5. Stalactites are found in caves on the:
A roof.
B walls.
C floors.
6. Pumice is a(n)
A igneous rock.
B metamorphic rock.
C sedimentary rock.
7. Fossils are embedded in:
A metamorphic rock.
B sedimentary rock.
C igneous rock.
8. Computer chips are made of:
A silicon.
B silver.
C gold.
9. The Earth's core is made of:
A liquid metal.
B solid metal.
C slushy metal.
10. Crystals are formed when lava:
A cools fast.
B cools slowly.
C doesn't cool.
