Answer the following questions about the picture to the right:

How and where did this rock cool?

What minerals might it be made up of?

Make sure to explain how you knew the answers!

What do rocks tell us about the Earth?

Small pieces of rock that are moved and deposited by water, wind and gravity

When sediments come together they form sedimentary rocks

• Deposition • Sediments are deposited

• Lithification • Physical and chemical processes

that transform sediments into sedimentary rocks

oCompactionoWeight of the overlying sediments forces the sediments closer together

oCementationoMineral growth “glues” sediment grains together into a solid rock

Bedding Horizontal layering of sedimentary rocks

Fossils can be preserved in sedimentary rocks during the lithification process

(Organism Minerals Rocks)

Clastic Sedimentary RocksForm from the deposit

of loose sediments that accumulate on Earths surface

Classified by the size of their particles

Coarse grained, medium grained and fine grained

Chemical Sedimentary RocksMinerals precipitate

out of saturated solutions and settle to the bottom

Layers of chemical sedimentary rocks form, called evaporites

Biochemical Sedimentary Rocks Form from the

remains of once living things

Limestone comes from calcium carbonate which is used by some organisms (shells)

1. How are clastic sediments classified?2. What type of clastic sediment has largest

particles size? Smallest?3. What size are classified as sand?4. What rock type is made up of cobbles?5. Classify a sediment that is 0.0020 mm in size.6. What type of rock has 0.05 mm sediment size?

1. Name 3 types of sed rocks.2. How are clastic sed rocks classified?3. Compare and contrast conglomerate

w/ breccia.4. How do chem. Sed. Rocks form?5. Name 3 common evaporite minerals.6. How do organic sed. Rocks form?7. Name 2 organic sed rocks.