Rocks & Minerals

Which of the following best describes how scientists classify different rocks?

• Their shape

• How they formed

• Where they are found

What type of rocks are formed by great heat and pressure?

• Metamorphic rocks

• Igneous rocks

• Sedimentary rocks

What type of rocks are formed when magma or lava cools and hardens?

• Metamorphic rocks

• Igneous rocks

• Sedimentary rocks

Which of the following is an example of a metamorphic rock?

• Granite

• Sandstone

• Marble

Which of the following is an example of an igneous rock?

• Granite

• Sandstone

• Marble

Which of the following is an example of a sedimentary rock?

• Granite

• Sandstone

• Marble

___________ rocks form layers at the bottoms of oceans and lakes.

• Igneous

• Sedimentary

• Metamorphic

What are the 3 layers of the earth?

• core, crust, plates

• core, mantle, magma

• crust, mantle, magma

• core, mantle, crust

When is magma called lava?

• when volcanoes erupt

• when it reaches the earth's surface

• when it reaches the oceans

• when it reaches the crust

How does erosion often occur?

• by wind

• by water

• by wind or water

• by wind or rocks