Rock Intro

What type of rock is this?

• Sedimentary

• Igneous

• Metamorphic

• Sand

How do extrusive igneous rocks differ from intrusive igneous rocks?

• Extrusive rocks are larger in size.

• Intrusive rocks break down quicker.

• Extrusive rocks are arranged in layers.

• Intrusive rocks have larger crystals.

In which location would you most likely find an igneous rock?

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Which force plays a major role in the formation of metamorphic rock?

• Acceleration

• Friction

• Pressure

• Centrifugal force

Compaction and cementation are two common processes associated with:

• Extrusive igneous rocks

• Intrusive igneous rocks

• Sedimentary rocks

• Metamorphic rocks

Which of the following is a TRUE statement?

• Magma is called lava after it emerges from the ground

• Lava cools off to form magma

• Magma and lava form sedimentary rocks

• Magma and lava are two types of metamorphic rock

Place the following events in sequence: A) Mineral grains are formed; B) A volcano erupts; C) Lava begins cooling

• A, B, C

• B, A, C

• B, C ,A

• C, A, B

Sedimentary rocks often form horizontal strata. What are strata?

• Crystals

• Layers

• Mineral grains

• Pieces of older rocks

What process is used to form metamorphic rocks?

• Lava cools and hardens to form a rock.

• Bits of sand gravel form layers that turn into rock from pressure.

• I don't know :(

• Extreme heat and pressure from inside the Earth turns rocks into new rocks.

Metamorphic rocks undergo metamorphosis. What is another example of metamorphosis?

• A candle burning

• A caterpillar turning into a butterfly

• A volcano erupting

• A five-story building being constructed