Rocks, Fossils, and the Rock Cycle Quiz

What are igneous rocks formed from?

• Sediments

• Lava or magma

• Crystals from the atmosphere

• Fossilized plants

Which process is responsible for forming sedimentary rocks?

• Solidification

• Melting

• Sedimentation

• Erosion

What is a key characteristic of igneous rocks?

• Made from layers of shells

• Always soft and easy to scratch

• Crystalline structure formed by cooling magma

• Contains fossils

What does the term "sediments" refer to?

• Layers of igneous rocks

• Very small pieces of rock

• Crystals in metamorphic rocks

• Molten rock from the mantle

Which type of rock is formed through intense heat and pressure?

• Sedimentary

• Igneous

• Metamorphic

• Fossilized

What is the difference between intrusive and extrusive igneous rocks?

• Intrusive rocks form on the Earth’s surface, extrusive rocks form underground.

• Intrusive rocks cool slowly inside the Earth, extrusive rocks cool quickly on the surface.

• Intrusive rocks are soft, while extrusive rocks are hard.

• Intrusive rocks are always fossilized, while extrusive rocks are not.

How do fossils form in sedimentary rocks?

• When plants and animals are quickly buried and preserved.

• Through volcanic eruptions.

• By intense pressure and heat.

• By cooling magma.

Which of the following is an example of a metamorphic rock?

• Granite

• Limestone

• Marble

• Basalt

What type of fossil is formed when an imprint is left behind in sediments?

• Cast fossil

• Mould fossil

• Trace fossil

• Intrusive fossil

What process causes sediment to be transported by rivers or wind?

• Deposition

• Sedimentation

• Erosion

• Melting