'How Sedimentary Rock Is Formed' Geology Worksheet printable pdf download

Directions: Read the information and highlight the important facts or words. Answer the questions.

How Sedimentary Rock Is Formed

Name___________________________Class___

For thousands, even millions of years, little pieces of our earth have

been eroded--broken down and worn away by wind and water and

turned into sediments. These sediments, or little bits of earth, are

washed downstream where they settle to the bottom of the rivers,

lakes, and oceans. Layer after layer of sediment is deposited on top of

each new layer. These layers are pressed down more and more through

time, until the bottom layers slowly turn into rock.

Conglomerate rocks are sedimentary rocks.

Conglomerate Rocks

They are made up of large sediments like sand

and pebbles. The sediment is so large that

pressure alone cannot hold the rock together; it

is also cemented together with dissolved

minerals.

Shale rock is a type of layered sedimentary

rock formed from clay that is compacted

together by pressure. They are used to make

Shale Rocks

bricks and other material that is fired in a

kiln.

Rock Facts



Sedimentary rocks are made from sediments (small pieces of other rocks- pebbles, sand, clay).



Rocks are always being broken into sediments and worn away (eroded) by wind and water.



The sediments flow along in rivers and streams or blow over the land and settle in a new

place.



As they settle, they pile up and form layers.



After long periods of time, the pieces become pressed together and form solid rock called

sedimentary rock.



Sedimentary rocks are usually formed in water and are found all over the world.



Many fossils are found in sedimentary rock.

1. What exactly is a sedimentary rock?_________________________________________________

______________________________________________________________________________

2. What two things are needed to form a sedimentary rock? _________________& _____________

3. How are conglomerate and shale rocks different?_______________________________________

______________________________________________________________________________

4. Why do you think fossils are found in sedimentary rock? ________________________________

______________________________________________________________________________

5. What can we use sedimentary rocks for? _____________________________________________

'How Sedimentary Rock Is Formed' Geology Worksheet

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