Earth’s Materials MCQ Test 1 Answers – Science Homework Answer Guides

1. 1 pt(s).	Which material is primarily a mixture of weathered rock and organic matter?
	A.	minerals
	B.	soil
	C.	ocean water
	D.	seashells


2. 1 pt(s).	Which process is mostly responsible for the breaking down of rock into sand-sized sediment?
	A.	precipitation
	B.	folding
	C.	weathering
	D.	faulting


3. 1 pt(s).	Rocks which are formed from molten material are called
	A.	carbon rocks
	B.	fossil rocks
	C.	igneous rocks
	D.	sedimentary rocks


4. 1 pt(s).	Weathering is
	A.	the making of rocks from the soil
	B.	the breaking down of rocks to form soil
	C.	a word used to describe a very windy day
	D.	the killing of soil animals in high winds


5. 1 pt(s).	Sedimentary rocks are formed
	A.	on high mountains
	B.	at the bottom of the sea
	C.	at the source of a river
	D.	in the core of the earth


6. 1 pt(s).	Which one of the following events occurs in the formation of sedimentary rock?
	A.	Crystallization
	B.	Melting
	C.	Cooling
	D.	Weathering

7.
1 pt(s).

The diagram below shows a rock suspended above an overflow container filled with water up to the overflow spout. A graduated cylinder is positioned next to the container to collect water that comes out of the overflow spout. Which property of the rock can be directly determined when the rock is placed in the overflow container?

mass

density

volume

solubility

8.
1 pt(s).

The diagram shows the rock cycle on the Earth. Using the information, what processes are responsible for creating sedimentary rocks?

burial, compaction, deposition and cementation

weathering and erosion

heat and/ or pressure

melting

9.
1 pt(s).

A student designs and builds a 1:1000 scale model of the Mt. Fuji volcano in Japan. Since Mt. Fuji is about 3,800 m high, what is the height of his scale model?

0.38 m

3.8 m

380 m

3,800 m


10. 1 pt(s).	Which of the following processes will produce igneous rocks?
	A.	deposition of sediments
	B.	volcanic action
	C.	earthquake activity
	D.	erosion of surface rocks


11. 1 pt(s).	A sticky soil that holds a lot of water would contain much
	A.	sand
	B.	silt
	C.	clay
	D.	humus


12. 1 pt(s).	A dark soil, containing lots of nutrients from dead plant sand or animals would contain much
	A.	sand
	B.	silt
	C.	clay
	D.	humus


13. 1 pt(s).	A soil containing an equal mixture of sand, clay and silt is
	A.	a loam soil and is bad for growing plants in
	B.	a loam soil and is good for growing plants in
	C.	a sandy soil and is good for growing plants in
	D.	a clay soil and is bad for growing plants in


14. 1 pt(s).	A gardener’s garden dred quickly after rain and his plants often died during summer unless he waterd the garden regularly. What conclusion could be made about the soil in his garden?
	A.	He had clay soil and this would be improved by adding more humus
	B.	He had sandy soil and this would be improved by adding more humus
	C.	He had loam soil and this would be improved by adding more sand
	D.	He had sandy soil and this would be improved by adding more clay


15. 1 pt(s).	Soil type can be determined by doing either of two types of test
	A.	the soil shake and the soil texture tests
	B.	the soil shake and soil vac tests
	C.	the soil break and the soil texture tests
	D.	soil shake and the soil text tests

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