Grade School Science/Rocks and Minerals Quiz

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1. What do we call the way the Earth constantly recycles rocks?

The water cycle
The rock cycle
The nitrogen cycle

2. Which of these is NOT a mineral property?

streak
luster
shape
hardness

3. Which type of rock is formed from cooled melted rock?

igneous
metamorphic
sedimentary

4. Which type of rock means rock that has changed after being baked and/or squeezed?

igneous
metamorphic
sedimentary

5. Which type of rock is formed from little bits of rock that have been cemented together?

igneous
metamorphic
sedimentary

6. Where does intrusive igneous rock form?

above ground
below ground
neither

7. Where does extrusive igneous rock form?

above ground
below ground
neither

8. For minerals, what does the Mohs scale measure?

luster
density
texture
hardness

9. What is streak?

The colour of a mineral's powder when it is rubbed against a textile plate
The way a mineral reflects light
The way a mineral sample rolls along a flat surface

10. Which value on the Mohs scale corresponds to the softest minerals?

1
10

11. Which value on the Mohs scale corresponds to the hardest minerals?

1
10

12. Which of these minerals has a Mohs value of 1?

quartz
talc
diamond
haematite
calcite

13. Which of these minerals has a Mohs value of 10?

quartz
talc
diamond
haematite
calcite

14. A mineral that breaks cleanly along smooth planes has

cleavage
fracture

15. A mineral that doesn't break cleanly along smooth planes has

cleavage
fracture

16. How can you tell whether an igneous rock formed above or below ground?

from its colour
from the grain size
from its hardness

17. Which type of igneous rock generally has larger grains?

extrusive igneous rock
intrusive igneous rock

18. Which of the following is correctly arranged in order of increasing grain size?

silt, sand, gravel, clay
clay, silt, sand, gravel
silt, sand, clay, gravel
silt, clay, sand, gravel

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