#2 Geologic History and Earth Material Study Guide Unit Test

What does the rock cycle demonstrate?

• How rocks form from plants

• How rocks move on and under Earth's crust

• How rocks float on water

• How rocks are used in construction

What happens after sediment is eroded in the rock cycle?

• It becomes magma

• It is deposited

• It crystallizes

• It melts

What type of rock is formed when layers of sediment compact and cement together?

• Igneous rock

• Metamorphic rock

• Sedimentary rock

• Magma

What process involves the melting of rock in the rock cycle?

• Weathering

• Erosion

• Crystallization

• Formation of magma

Which of the following is an example of weathering?

• Rocks melting

• Rain breaking down rocks

• Rocks forming crystals

• Rocks floating on water

What can cause weathering besides rain and waterfalls?

• Fire

• Gravity, plant roots, animal movement

• Electricity

• Sound waves

What is the final step in the rock cycle before it starts again?

• Sediment forms

• Magma cools and crystallizes

• Rocks float

• Rocks evaporate

What happens to sediment after it is deposited?

• It melts

• It compacts and cements

• It evaporates

• It floats

What do rocks containing fossils provide evidence for?

• The future of Earth's climate

• The long history of Earth and its changing life forms

• The current weather patterns

• The formation of mountains

What do geologists use to help determine the geologic history of the Earth?

• Weather patterns

• Fossil records and rock strata

• Ocean currents

• Volcanic activity