SCIENCE REVIEW

1
SCIENCE REVIEW

• Unit E, Chapter 1

2
Name five tests scientists use to determine the
name of a mineral.

• Color
• Luster
• Streak
• Hardness
• Cleavage

3
Name two ways scientists categorize luster.

• Metallic
• Non-metallic

4
How do scientists test for the hardness of a
mineral?

• First, they scratch the mineral with a
  fingernail.
• If that doesnt scratch, they try copper.
• If that doesnt scratch it, they try steel
• and then glass.
• If the mineral can scratch the glass, they know
  that it is harder than glass.
• They may then try other minerals on it.

5
Identify the following minerals in a set by
writing the correct number next to the name of
the mineral.
6
ANSWERS
7
Explain how scientists use cleavage, hardness,
luster and streak to determine the name of a
mineral.

• Each mineral has a distinctive color, luster,
  streak, hardness and cleavage.
• Scientists run tests on a mineral to determine
  each one of these.
• Then they use a mineral chart to determine which
  mineral it most closely resembles.
• A look at some special qualities can also help
  them determine the name of a mineral.You have
  mineral sample

8
You have mineral samples of gold and pyrite known
as fools gold. In the space below, draw what
each minerals streak would look like on a streak
plate and label the color.
9
You have an unknown metallic mineral that does
not scratch topaz. It does scratch gypsum. List
the three minerals in order of increasing
hardness.

• Gypsum
• Unknown
• Topaz

10
Sara tested a mineral to identify it. It had a
metallic __________ and had a distinctive
_________ on a piece of tile. She used the
scratch test to find the ___________ of the
mineral and checked for _______________.
11
Sara tested a mineral to identify it. It had a
metallic luster and had a distinctive streak on a
piece of tile. She used the scratch test to find
the hardness of the mineral and checked for
cleavage.
12
Mineral resources are nonrenewable. Should mining
continue if resources are swindling or if they
are found in a wilderness area?
13
Since many metallic minerals can be recylced,
mining in these areas should have restrictions.