How do you find the volume of an irregular shaped object?
You use a graduated cylinder to find the displacement of the object.
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You found a mineral with a mass of 45.7 g and a volume of 18 cm3. What is the mineral’s density?
2.54 g/cm3 (rounded to the hundredths place)
15
Antonio found a brick on the road and wanted to find its density. It had a mass of 2,000 grams. Its sides measured 10 x 5 x 15 cm. What is the brick’s density?
2.67 g/cm3
15
Given the hardness chart, what is the possible hardness of a mineral if it scratches your fingernail but not a copper penny?
3
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A student needs to find the volume of a marble. She places the marble in graduated cylinder filled with 25 mL of water. The water rises to 28.4 mL. What is the volume of the marble?
3.4 mL
15
List at least 3 characteristics of metals (using our unit vocabulary words).
Luster, Malleable, Conductor, Ductile
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Why is using only appearance to identify minerals unreliable?
Many minerals come in different colors and the appearance of the color can be subjective.
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What is the volume of the green jade sample?
10.5
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What are the properties of nonmetals?
Dull, Brittle, Insulator
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What is the density of water?
1 g/mL
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Oil sits on top of water, so which one is more dense?
Water
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If you add salt to water, what is going to happen to the density of the water?
The density of the water will increase.
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A substance that can be hammered into sheets and bent into other shapes without breaking is _____________.
Malleable
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A substance that can be drawn into wires is ___________.
Ductile
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If a material's surface can reflect light, then it has ________.
Luster
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What are the properties of metalloids?
It has properties of both metals and nonmetals. It is also a semi-conductor.
