Unit 4 Science Review

According to the Mohs scale, can a softer mineral scratch a harder mineral?

• Yes

• No

What is special about the mineral Mica?

• It has a hardness level of 10

• It breaks into thin, flat sheets

• It's shiny

• It can be used to make buildings

Are minerals made up of rocks or are rocks made up of minerals?

• Rocks are made up of minerals.

• Minerals are made up of rocks.

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Which of the following collects energy from the sun?

• The sidewalk

• A bicycle

• A solar cell

• My sunglasses

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Where do we get most of our energy from?

• Nonrenewable resources

• Renewable resources

• Food

• Water

Turning the lights off when you aren't using them is a way to _______________ energy.

• Waste

• Love

• Lose

• Conserve

Water and the sun are what kind of resources?

• Nonrenewable

• Renewable

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What weathers shells and rocks to form sand?

• Sun

• Ice

• Waves

• Wind

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An example of weathering is...

• Water moving sediment down a river

• Wind blowing sand

• A glacier dropping off tiny bits of rock

• Roots growing into a rock and breaking it

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Erosion is...

• The process in which rock is broken down.

• The movement of weathered rock.

• Small bits of rock, sand, and silt.

• The dropping off of weathered rock.