Rock Review

If an igneous rock cools off slowly UNDERNEATH the Earth's surface, then its mineral crystals will be...

• Small mineral crystals that you can barely see.
• Large crystals that are easy to see.
• No crystals, it will have bits of plant and bones.
• No crystals, it will contain sand. 

Rocks that have been changes by heat and pressure are called

• igneous rocks

• sedimentary rocks

• metamorphic rocks

• water rocks

What group of rocks formed from rock fragments?

• igneous rocks

• sedimentary rocks

• metamorphic rocks

• water rocks

Extrusive igneous rocks have what texture?

• fine

• rough

• coarse

• no texture

What makes a rock different from a mineral?

• A rock is not a mixture of substances.
• A rock is composed of minerals.
• A mineral is formed in the ground.
• A mineral contains many rocks.

This type of sedimentary rock probably formed when water evaporated and left the rock behind...

• Organic
• Clastic
• Chemical
• Both Organic and Chemical

Metamorphic rock forms...

• above ground
• in the air
• in the water
• deep underground

Metamorphic rock forms by...

• deposition
• heat and pressure
• heat and melting
• cementation

Sediments have been deposited by...

• sediments fall from the sky

• wind, water, people throwing them

• water, wind, ice

Basalt is an extrusive igneous rock. What does it mean when a rock is extrusive?

• The rock formed when lava (from a volcano) cooled quickly.
• The rock formed when magma (underground) cooled quickly.
• The rock formed when magma (underground) cooled slowly.
• The rock formed when lava (from a volcano) cooled slowly.