Sedimentary Rocks

Name _____________________________________ Date ________________

Notes: Sedimentary Rocks (Science 8) Period ______________

Sedimentary Rocks

I. What are Sedimentary Rocks?

a. Sedimentary rocks form from the accumulation of _______________ which form from the result of _______________ and ____________.

b. Most sediments are deposited in ________________.

c. Sedimentary rocks are often ____________ and are the only ones that contain ___________.

II. How They’re Formed

a. Rock _____________(________________) that are cemented together.

i. As sediment layers are added, _____________ on underlying sediments __________________ the sediment.

1. Example: ____________- Forms from ________ sediments that are compressed, squeezing the ___________ out.

a. Shale is roughly ____ % of all sedimentary rocks.

ii. Some rocks are ____________ and compacted. Cementation occurs when minerals like ___________ get in spaces between the rock fragments and “glue” them together.

1. Example: _____________________

2. Example: _____________________-larger rock fragments stuck together.

b. Water can _______________, leaving dissolved minerals behind.

i. Example: __________________

ii. Example: __________________

c. _________________- Result from biological processes.

i. Some form from the remains of ___________ and ____________. Example: ________________

ii. Some form from life underwater using _________. These shells can get cemented and compacted also, forming ____________.