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Rocks and Minerals Test
(remember to use a capital letter)
.(remember to put capital letters on your name)
1. Rocks are made of _____
2. Which type of rock forms when hot lava cools?
3. Any kind of rock can change into a metamorphic rock. What causes the rock to change?
Heat and pressure
4. Sedimentary rocks form when _____ .
earth materials are deposited in layers over time
magma comes to the surface of Earth and cools
heat and pressure build up on earth materials over time
earth materials are changed by sunlight and storms
5. Igneous rocks form when _____ .
pressure breaks down any kind of rock
melted rock from deep under Earth’s surface comes to the surface and hardens
chemical weathering changes metamorphic rock
layers of sediment are exposed to weather at Earth’s surface
6. What is the rock cycle?
a bike made out of rocks
A process in which wind and water breaks rocks into small pieces
A process in which one type of rock changes into another type
The step a rock goes through as it grows crystals
7. Which group of properties would best help identify a mineral?
Diameter, mass, and color
Mass, hardness, and cleavage
Luster, diameter, and mass
Cleavage, color, and hardness
8. Calcite breaks with smooth, flat surfaces. This means calcite breaks with _____ .
Use this picture for number 9
9. What property is the student testing in this picture?
Use this picture for number 10
10. How would you describe this mineral's luster?
11. When geologists identify minerals, they sometimes look at streak rather than color. Which of the following sentences is true?
Most geologists use mineral color as much as streak.
Geologists often cannot agree on exact mineral color.
A mineral’s streak is always the same color.
All samples of one kind of mineral are always the same color.
Use this chart to help you with question 12 and 13
12. You used three tools to test minerals for hardness: your fingernail, an aluminum nail, and a steel nail. If a mineral can be scratched by an aluminum nail, _____ .
you know it has a hardness of 3
the mineral can also be scratched by a fingernail
the mineral can also be scratched by a steel nail
you can’t estimate its hardness without doing the test with all three tools
13. A student was testing a mineral for hardness. He found that his fingernail did not scratch it. An aluminum nail did not scratch it. A steel nail did scratch it. Which mineral could the student be testing?
Use this chart for number 14 and 15
14. A student found a black mineral. It was metallic, made a brown streak, and fractured when broken. An aluminum nail did not scratch it, but a steel nail did. What mineral could this be?
15. Goldie was searching for gold nuggets in the river. She couldn't believe it, there in the water she saw a glittery, golden nugget! How can Goldie tell if the mineral she found was gold or pyrite?
Test for hardness, if an steel nail can not scratch it, it's Gold!!!
Test the streak, if it's golden or yellow, t's Gold!!!
Look at the luster, if it is metallic, it's Gold!!!
Test for break, if it has fracture, it's Gold!!!
16. Which properties would be most helpful to tell if a mineral is quartz or calcite?
check two answers
17. Slate is made when heat and pressure deep in the earth change the rock shale into slate. What kind of a rock is slate?
18. Basalt is made when lava flows from cracks in the earth and harden into basalt. What kind of rock is basalt?
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