Types of rocks -Sedimentary

Types of Rocks - Sedimentary

All you need to know

Sedimentary rocks are rocks made of small bits stuck together

What are they?

Sedimentary rocks are rocks made of small bits stuck together

The Little bits they are made from are washed down rivers

What are they?

Little bits of stuff(sediments)

River carrying bits

The bits that are washed down have some smaller and some bigger bits in them

What are they?

The bits washed down are different sizes

The bits that are washed down have some smaller and some bigger bits in them

The smaller bits mix with the water and make cement.

What are they?

The bits washed down are different sizes

The bits that are washed down have some smaller and some bigger bits in them

The smaller bits mix with the water and make cement.

This helps the little bits stick together

What are they?

The bits washed down are different sizes

The little bits gather at the bottom of the river making a layer

What are they?

Sediments

River

End of river

Layer of Sediments (Little Bits)

The little bits gather at the bottom of the river making a layer

As time goes by there are lots of different layers made

What are they?

Sediments

River

End of river

Build up of different layers

The layer at the bottom has alot of weight on it.

What are they?

Sediments

River

End of river

Build up of different layersLots of weight on this layer

The layer at the bottom has alot of weight on it.

All the weight presses on the layer making it smaller. The little bits in the layer are pushed closer together

What are they?

Sediments

River

End of river

Build up of different layersLots of weight on this layer

The layer at the bottom has alot of weight on it.

All the weight presses on the layer making it smaller. The little bits in the layer are pushed closer together

This is called compaction

What are they?

Sediments

River

End of river

Build up of different layersLots of weight on this layer

The compaction pushes the little bits together

What are they?

The compaction pushes the little bits together

The cement made by the really small bits, makes the sediments stay squished together

What are they?

The compaction pushes the little bits together

The cement made by the really small bits, makes the sediments stay squished together

This is how sedimentary rocks are made

What are they?

You need to know some examples of Sedimentary rock

Examples

You need to know some examples of Sedimentary rock

The first kind is called Limestone

Examples

You need to know some examples of Sedimentary rock

The first kind is called Limestone Limestone is made of little bits of shells

Examples

You need to know some examples of Sedimentary rock

The first kind is called Limestone Limestone is made of little bits of shells Sometimes whole shells are caught in them

and make fossils

Examples

The next kind is called Mudstone

Examples

The next kind is called Mudstone Obviously it is made of mud

Examples

The next kind is called Mudstone It is made of mud

The last example is Sandstone It is made from Sand

Examples

So basically Sedimentary rocks are made from small bits stuck together by cement and being squished together.

Summary

So basically Sedimentary rocks are made from small bits stuck together by cement and being squished together.

They can have fossils in them

Summary

So basically Sedimentary rocks are made from small bits stuck together by cement and being squished together.

They can have fossils in them They can be made from sand, mud and

shells

Summary