Rocks Review

What rock is formed when other rocks are transformed by heat and pressure?

• metamorphic
• sedimentary
• igneous

How are metamorphic rocks formed?

• pressure
• water
• heat and pressure
• air and water

What is an example of metamorphic rock?

• coal
• shale
• marble
• obsidian

How is sedimentary formed?

• When a volcano erupts.
• With heat and pressure
• When sediments are squeezed and pressed.

What is sediment?

• tiny pieces of plants and animals
• ice and water
• lava and magma

What is an example of sedimentary rock?

• coal
• marble
• obsidian
• granite

How is igneous rock formed?

• by heat and pressure
• when sediments are pressed
• When magma and lava are heated and cooled.

What are examples of igneous rock?

• limestone
• obsidian
• marble
• shale

What forces change rocks?

• water, ice, lava
• heat, pressure, weathering, erosion
• heat and pressure
• weathering and erosion

How does igneous rock change to sedimentary rock?

• weathering and erosion and pressure
• heat
• heat and pressure