Sedimentary Rocks quiz

What does clastic mean?

• Compacted sediment
• Magma made the rock
• The rock has crystals 

Sedimentary rocks are formed by

• Cooling of lava or magma
• Heat and pressure
• Compacting and cementing

How is sediment formed?

• Weathering and Erosion
• Melting
• Pressure

_{Sedimentary Rocks are often made up of other rocks and minerals.}

• True
• False

Fossils are only found in sedimentary rocks.

• True
• False

What type of sedimentary rock forms when the remains of plants or animals are deposited in thick layers?

• Clastic
• Organic
• Chemical

Geologists classify sedimentary rocks into three major groups: _________ rock, chemical rock, and organic rock.

• Clastic
• Limestone

• Sandstone
• Coal
• Shale
• Flint

This rock is made from tiny pieces of other rocks that settled to the bottom of a valley millions of years ago. What type of rock is this?

• Sedimentary
• Igneous
• Metamorphic

What is an example of an organic rock?

• coal
• breccia
• rock salt
• shale