Lesson 11 Review

Sedimentary Rocks

100

Sedimentary rocks contain layers of sediment and can contain fossils. True or False?

True

300

Sand is easily affected by erosion and deposition. Is the same true once a sedimentary rock forms? Explain.

No, once the rock forms it won't be as easy to move because it is heavier, and often times buried.

500

Name two types of sedimentary rocks that we discussed.

Shale, Fossiliferous Limestone, Sandstone

Igneous Rocks

100

Igneous rocks form over time by compression of other rocks. True or False?

False

300

If you had to choose between a Sedimentary or Igneous rock to carve, which would you choose? Explain.

 What type of climate would you choose to carve this type of rock?

Igneous rock, because it is stronger and more resistant to erosion.

A cool/dry climate would be better, again, so weathering and erosion is less of a factor. 

500

Name two types of igneous rocks that we discussed.

Basalt and Granite

Metamorphic Rocks

100

Metamorphic rock is less resistant to erosion that sedimentary rock. True or False?

False

300

What type of rock is formed at the base of the Grand Canyon? What does it look like?

Metamorphic rock, it is made up of layers of crystals (gneiss). It also has layers that often are straight up and down, unlike that of sedimentary rocks.

500

Name two types of metamorphic rocks that we discussed.

Slate and Gneiss

Random

100

How are the three types of rocks formed? One or two words.

Sedimentary- Burial

Igneous- Melting/Cooling

Metamorphic- Compression

300

Igneous rocks are formed by melting and cooling. What evidence could you look for when finding these rocks?

You should look for crystallization. Also, usually no layers form since cooling and melting often occur simultaneously. 

500

What evidence could you look for to know when a rock was formed by melting and cooling?

Crystals