Rock Cycle

During which process does layer upon layer of sediment build up, exerting pressure on the layers below?

• Erosion

• Compaction

• Conglomerate

Metamorphic rock transforms to sediment by ______?

• melting and cooling

• cementation and compaction

• Weathering and erosion

• heat and pressure

Heat and ____________ can change sedimentary rock into metamorphic rock.

• Pressure

• Melting

• Coolig

Igneous rocks form from the __________ of magma or lava.

• Pressure

• Cooling

• Heat

_________ is the process which causes magma to form.

• Pressure

• Melting

• Cooling

Why are some igneous rocks coarse and others are smooth?

• Igneous rocks have different textures based on their crystal size. Determined by how quickly it cools.

• Igneous rocks have different based on their crystal weight. Determined by how quickly it warms.

Which type of rock often contains fossils and how do you think this occurs?

• Sedimentary rocks

• Metamorphic

• Igneous

A model showing the processes that create and change rock.

• Water Cycle

• Carbon Cycle

• Rock Cycle

• Nitrogen Cycle

This rock started as molten magma but transformed after a volcano erupted. What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

Thinking about sedimentary rock, the oldest layers are found

• on the top most layer

• in the middle of other layers

• all layers are the same age

• towards the bottom