Science Jeopardy…Minerals

Today’s Categories… Mohs Hardness Scale Mineral Characteristics Vocabulary Mineral Identification Applications

Mohs Identify Applications

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Vocab

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Characteristics

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Mohs Hardness - $100What would happen if you rubbed a piece of fluorite against a piece of feldspar?

The fluorite would be scratched but the feldspar would not be scratched.

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Mohs Hardness - $200What would you expect to happen if you rubbed a mineral of hardness 7.5 against a piece of quartz?

The mineral would scratch the quartz.

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Mohs Hardness - $300Which minerals in the table will scratch quartz?

topaz, corundum, and diamond

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Mohs Hardness - $400An unknown mineral scratches apatite and is scratched by corundum. What can you conclude about this mineral’s hardness?

Its hardness is greater than 5 but less than 9.

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Mohs Hardness - $500List the following minerals in order of decreasing hardness: apatite, calcite, corundum, feldspar, and talc.

corundum, feldspar, apatite, calcite, talc

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Characteristics - $100The atoms of a mineral are arranged in a repeating pattern to form a solid called a(n) ____________________.

Crystal

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Characteristics - $200A mineral is always a(n) ______________ because it has a definite volume and shape.

solid

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Characteristics - $300What are the four characteristics of a mineral?

Naturally occurring, inorganic, definite chemical composition, and crystalline solid

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Characteristics - $400Minerals can form deep inside Earth’s crust by …a. cleavage and fracture.b. friction along faults.c. crystallization of melted materials.d. evaporation of ancient seas.

c. crystallization of melted materials.Back to Board

Characteristics - $500Minerals may form on Earth’s surface when …a. magma heats a solution.b. crystallization is delayed.c. solutions evaporate.d. pure metals are present.

c. solutions evaporate.

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Vocabulary - $100Magma that cools slowly below the surface forms _________ crystals.

large

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Vocabulary - $200The faster magma cools, the _____________ that the mineral crystals are that form.

smaller

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Vocabulary - $300

DAILY DOUBLE!!!

Vocabulary - $400Two types of ____________________ are metallic and nonmetallic.

Luster

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Vocabulary - $500The splitting of a mineral along flat surfaces is a property called ____________________.

cleavage

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Identification - $100Break mineral apart to see if it splits along flat surfaces. What test is this?

Cleavage and Fracture

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Identification - $200Find mass ÷ volume. What test is this?

Density

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Identification - $300Observe surface of mineral. What test is this?

Color

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Identification - $400a. Observe color of powder on unglazed tile.b.Perform scratch test

What tests are these?

a. Streak b. Hardness

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Identification - $500a. Observe how mineral reflects light.b.Observe number and angle of crystal faces.

What tests are these?

a. Lusterb. Crystal Shape

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Applications - $100What is an advantage and a disadvantage to using color to identify a mineral?

The color of a mineral is an easily observed property. However, many minerals occur in a variety of colors, so few minerals can be identified based only on their color.

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Applications - $200About how many minerals have been identified?

4,000Back to Board

Applications - $300What does a mineral’s streak tell you, and how do you test for it?

A mineral’s streak tells the color of the mineral when it is in powder form. The streak test is helpful in telling apart two minerals that are the same color. Even though the minerals look alike, their streak is often different. A mineral is tested for streak by rubbing it against a piece of unglazed tile, or a streak plate. Back to Board

Applications - $400What is the hardest known mineral?

Diamond Back to Board

Applications - $500What is the difference between what mineral properties tell us and what mineral tests tell us? Explain.

Mineral properties tell us if something is a mineral or not and mineral tests help us identify minerals.

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Which Statement $100Gross Margin appears on this statement.

What is the Income Statement?

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Which Statement $200Gain on Disposal of Equipment appears on this statement.

What is the Income Statement?

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Which Statement $300Accumulated Depreciation appears on this statement.

What is the Balance Sheet?

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Which Statement $400Unrealized Gain on Trading Securities appears on this statement.

What is the Income Statement?

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Which Statement $500Wages Payable to Employees appears on this statement.

What is the Balance Sheet?

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Daily Double Specify Your Wager!

Vocabulary ---

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What is an example of a special property that a mineral might have?

Fluorescence , Magnetism, Radioactive, Fizzes (reaction to acid), Electrical Properties