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Minerals, Rocks, and Fossils. What are rocks made of?. minerals. Minerals are not made by people; they are …. …naturally occurring substances. Name four properties (or clues) that scientists use to identify minerals. Color, luster, streak, and hardness.

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Minerals, Rocks, and Fossils

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Minerals rocks and fossils

Minerals, Rocks,

and Fossils


Minerals rocks and fossils

What are rocks made of?

minerals


Minerals rocks and fossils

Minerals are not made by people; they are …

…naturally occurring substances.


Minerals rocks and fossils

Name four properties (or clues) that scientists use to identify minerals.

Color, luster, streak, and hardness


Minerals rocks and fossils

Which property means the way the light bounces off the mineral?

luster


Minerals rocks and fossils

What words can be used to describe a mineral’s luster?

Glassy, dull, shiny, greasy


Minerals rocks and fossils

Why is color not a good property to use to identify a mineral?

limestone

slate

Many minerals have the same color.


Minerals rocks and fossils

fingernail, penny, nail

What are three testers that can be used to determine a mineral’s hardness?


Minerals rocks and fossils

What type of rock is formed when magma cools and hardens?

Igneous


Minerals rocks and fossils

What type of rock is formed when change occurs from heat and pressure in the Earth?

Metamorphic


Minerals rocks and fossils

What type of rock is formed when weathering and erosion cause sediments to press together in layers?

Sedimentary


Minerals rocks and fossils

Melted rock below the Earth’s surface is called…

magma.


Minerals rocks and fossils

Small bits and pieces of rocks are called…

sediments.


Minerals rocks and fossils

The breaking down and wearing away of rocks is called…

weathering.


Minerals rocks and fossils

The movement of sediments from one place to another is called…

erosion.


Minerals rocks and fossils

What is any trace, mark, or remains of an organism called?

fossil


Minerals rocks and fossils

Now that’s old!!

10,000 years

How old must a fossil be?


Minerals rocks and fossils

What kind of rock are fossils usually preserved in?

sedimentary


Minerals rocks and fossils

They study them to learn about extinct plants and animals.

Why do scientists study fossils?


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