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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