Sedimentary Rocks & Geologic History

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

• True
• False

Small pieces of rock, sand, silt is called?

• weathering
• sediment

Small pebbles, pieces of other rock, and sand are called?

• weathering
• sediment

Coal is formed from dead plants and other organisms?

• True
• False

Sedimentary rocks are often formed in layers.

• True 
• False

What percent of the rocks on the the Earth's surface are sedimentary rocks?

• 25%
• 50%
• 75%

The process when rocks break into smaller pieces due to exposure to natural elements is called

• erosion
• weathering
• sediments

The movement of weathered material (sediment) is called?

• weathering
• erosion
• deposition

Fossils are only found in sedimentary rocks.

• True
• False

Sedimentary rock that is made of fragments of rocks cemented together by a mineral are called...

• chemical
• organic
• clastic