What rock is thought as the parent rocks for all other rock types?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Which of the following is NOT one of the three types of rock?

• Igneous rock

• Magma

• Metamorphic rock

• Sedimentary

Fossils are found in this type of rocks

• Igneous rock

• Sedimentary rock

• Metamorphic rock

The interlocking crystals of igneous rock help to classify it since these crystals are evidence of how the rock formed. The crystals are a result of______

• Chemical reactions of minerals

• Sediments being deposited

• Metamorphic rock

• melted rock that cooled.

What type of rocks are formed from sediments over long period of time?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

Which of the following processes is one of the first steps in the formation of some sedimentary rock?

• Rock is broken down into pieces.

• Rock melts deep underground.

• Liquid magma cools and hardens.

• Minerals change due to pressure.

What type of rocks are formed from sediments over long period of time?

• Igneous rock

• Sedimentary rock

• Metamorphic rock

In order to be classified as metamorphic, a rock must–

• be made of small bits of larger rock.

• have formed very quickly.

• have been completely melted.

• change with heat and pressure.

Igneous and metamorphic rock can be buried and undergo tremendous heating and stress. What is the process of transformation of one rock into another?

• Compaction

• Lithification

• Metamorphism

• Weathering

What is one of the most common processes that turns sediments into sedimentary rocks

• Organisms in the soil breaking down organic matter into useful chemicals

• Layers made of bits of broken rock pressing down on other layers

  
  

• Minerals within rock layers growing into large crystals over time

• Magma cooling under the surface of Earth, crystallizing to form rock