Science Review

Unlike rocks, minerals

• are solid
• are not alive
• come in many colors
• are shaped like crystals

Which of the following is true about all rocks?

• They are the same color.
• They are made of minerals.
• They are made of shells.
• They are the same shape.

Joshua finds a rock on the side of a volcano. He looks at a small piece of the rock under the microscope. What does he probably see in the rock?

• Crystals of minerals
• Tiny sea plants
• Layers of soil
• Pieces of plastic

How are rocks and minerals different?

• Minerals are made of rocks.
• Rocks are made of minerals.
• Rocks are solid, but minerals are not solid.
• Minerals are solid, but rocks are not solid.

Astronauts have collected rocks from the Moon. These rocks are made of

• plants
• vitamins
• minerals
• plastic

Chemicals mixed with rainwater can change rocks through which action?

• moving
• smashing
• dissolving
• grinding

Diamonds can be used in machines because of?

• its shape
• its strength
• its shine
• its hardness

Sandstone is created when layers of tiny grains of sediment harden. Why would sandstone be labeled a rock and not a mineral?

• Sandstone is formed by nature.
• It is made of several minerals.
• It is used in buildings. 
• It erodes easily

When identifying a mineral it is not good to concentrate on

• The color of the mineral
• The color of the mineral’s streak
• How hard the mineral is
• How much the mineral shines

What is the Moh’s scale used for?

• To measure the color of minerals
• To measure the hardness of minerals
• To measure the size of minerals
• To measure the shape of minerals