Transcript Sedimentary Rocks - Noadswood Science

Sedimentary Rocks
To know how sedimentary rocks are formed
Can you unscramble the following sedimentary rocks:
•Lomeienst
•Ssotadntn
•Slsneoitt
•Slahe
•Casneolyt
What does the term “sedimentary” mean?

Can you break the word down?

Sediment – What does this mean?
Sedimentary Rocks
Sand
Sandstone
Sandstone Formation

Sandstone was originally loose sand on the floor. Since then the
grains have become stuck together

You are going to investigate
how this could have
happened…

How do you think particle
size can affect the strength of
the rock?
Sedimentary Experiment

Smear a small amount of petroleum jelly around the inside of the syringe

Make some sand damp in a plastic cub by adding a small amount of water to it:
fill your syringe with this damp sand

Put your fingers over the end of the syringe and press the plunger in as hard as
you can

Take your thumb away and gently push the sand pellet out of the syringe onto a
piece of paper

Repeat this using damp sand and gravel; then repeat again using damp sand and
plaster of Paris and any other combination of the 3.

Leave your pellets to dry for 10-15 minutes
Design an experiment that could be used to test the strength of the
sedimentary rocks you have formed.
Independent Variable:
Dependant variable:
Control Variables:
Type of data:
How does the particle size affect the strength of the rock?
Sedimentary Formation