Rock Cycle

How are sedimentary rocks formed?

• They are formed from volcanic activity.

• They are formed from layers of sediment that accumulate over millions of years.

• They are formed from the cooling of magma.

• They are formed from the metamorphism of igneous rocks.

What is the main difference between igneous and sedimentary rocks?

• Igneous rocks form from accumulated sediments, while sedimentary rocks form from molten material.

• Igneous rocks form from molten material, while sedimentary rocks form from accumulated sediments.

• Igneous rocks are formed under high pressure, while sedimentary rocks are formed at low pressure.

• Igneous rocks are always crystalline, while sedimentary rocks are always amorphous.

What is molten rock below the Earth's surface called?

• Magma

• Lava

• Basalt

• Granite

What is the process of sediment being pressed together to form rock?

• Cementation

• Erosion

• Compaction

• Lithification

What is the process of rocks breaking down into smaller pieces called?

• Erosion

• Weathering

• Sedimentation

• Metamorphism

Can any rock turn into any other kind of rock?

• True

• False

• Only igneous rocks can change

• Only sedimentary rocks can change

What is molten rock above the Earth's surface called?

• Magma

• Lava

• Basalt

• Granite

What type of rock is created when existing rocks are heated and compressed?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Volcanic rock

What is metamorphism?

• The process of rock formation from magma.

• The process by which existing rocks are changed by heat, pressure, or chemically.

• The process of erosion and sedimentation of rocks.

• The process of fossilization of organic materials.

Can sedimentary rocks become metamorphic rocks?

• No, sedimentary rocks cannot change into metamorphic rocks.

• Yes, sedimentary rocks can become metamorphic rocks through heat and pressure.

• Only igneous rocks can become metamorphic rocks.

• Sedimentary rocks can only remain as sedimentary rocks.