Download extra revision sheet grade 7 Q 4 Multiple Choice Identify the choice

extra revision sheet grade 7 Q 4
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. What are the two major groups of minerals?
a. silicates and nonsilicates
c. metallic and nonmetallic
b. quartz and mica
d. native elements and carbonates
____
2. The groupings silicate and nonsilicate minerals are based on
a. chemical composition.
c. organic content.
b. color.
d. gas and liquid state.
____
3. Nonsilicate minerals
a. all have a nonmetallic luster.
b. are all rare substances.
c. do not contain oxygen.
d. include native elements.
____
4. Which of the following is NOT true of minerals?
a. They are inorganic.
c. They are liquids.
b. They have a crystalline
d. They are formed in nature.
structure.
____
5. Which of the following is NOT a class of nonsilicate minerals?
a. carbonates
c. oxides
b. native elements
d. micas
____
6. A repeating pattern of atoms, ions, or molecules in a mineral is called
a. crystalline structure.
c. mineral structure.
b. elemental structure.
d. compound structure.
____
7. Halides and oxides are classes of
a. micas.
b. nonsilicate minerals.
c. silicate materials.
d. native elements.
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____
8. Which of the following is NOT a type of luster?
a. supermetallic
c. nonmetallic
b. metallic
d. submetallic
____
9. What is the softest mineral on the Mohs scale?
a. topaz
c. diamond
b. talc
d. gypsum
____ 10. What is the color of a mineral in powdered form called?
a. streak
c. gas
b. liquid
d. fracture
____ 11. Tectonic plates consist of
a. both continental and oceanic
crust.
b. mesosphere.
c. continental crust.
d. oceanic crust.
____ 12. Wegener thought that all the continents were once together in one large continent called
a. Eurasia.
c. Gondwana.
b. Pangaea.
d. Laurasia.
____ 13. A possible result of plates moving along a transform boundary is
a. earthquakes.
c. oceans.
b. sea-floor spreading.
d. convection.
____ 14. What is the liquid layer of the Earth’s core called?
a. inner core
c. lithosphere
b. outer core
d. mesosphere
____ 15. According to the continental drift theory, a single, huge continent once existed called
a. Panthalassa.
c. Pangaea.
b. Eurasia.
d. Wegener.
____ 16. The core consists mainly of
a. silicon.
b. oxygen.
c. iron.
d. magnesium.
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____ 17. The fact that similar fossils are found on both sides of the ocean is evidence of
a. continental drift.
c. global positioning.
b. oceanic drifts.
d. magnetic reversal.
____ 18. What does the theory of continental drift explain?
a. how volcanoes formed
c. the layers of the Earth
b. how oceans formed
d. why continents move
____ 19. What is compression?
a. stress breaking an object
b. stress releasing an object
c. stress squeezing an object
d. stress pulling an object
____ 20. What is the idea that all continents were part of one big landmass?
a. oceanic theory
c. oceanic drift
b. continental theory
d. continental drift
____ 21. Tectonic plates “float” on
a. the asthenosphere.
b. the lithosphere.
c. the ocean.
d. the mantle.
____ 22. Mid-ocean ridges are the most common type of
a. divergent boundary.
c. continental-continental collision.
b. subduction zone.
d. oceanic-oceanic collision.
____ 23. Changes in density in the asthenosphere are caused by
a. ridge push.
c. thermal energy.
b. seismic waves.
d. slab pull.
____ 24. Which of the following is a type of frost action?
a. ice wedging
c. abrasion
b. gravity
d. oxidation
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____ 25. How do lichens slowly break down a rock?
a. by ice wedging
c. by abrasion
b. by chemical weathering
d. by mechanical weathering
____ 26. Ice, wind, water, gravity, plants, and animals are all agents of
a. oxidation.
c. differential weathering.
b. desertification.
d. physical weathering.
____ 27. When oxygen in the air reacts with iron, the result is
a. oxidation.
c. abrasion.
b. infiltration.
d. differential weathering.
____ 28. What is the breakdown of rock into smaller pieces by physical means called?
a. habitation
c. mechanical weathering
b. acid precipitation
d. oxidation
Completion
Complete each statement.
29. A mineral that is composed of only one element is called a ____________________.
30. One of the more common silicate minerals is ____________________, which is the main
component of most rocks on Earth.
31. The measure of how much matter is in a given space is called ____________________.
32. The most common classification of minerals is based on ____________________ composition.
33. A naturally formed, inorganic solid with a definite crystalline structure is a
____________________.
34. The lithosphere floats on a layer of the Earth’s mantle called the ____________________.
35. The liquid layer at the Earth's center is known as the ____________________.
36. Tectonic plates move together to form a ____________________ boundary.
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Matching
Match each item with the correct statement below.
a. fracture
e. density
b. luster
f. cleavage
c. color
g. hardness
d. special properties
h. streak
____ 37. the appearance of a mineral that can vary according to the impurities in that mineral as well as
other factors
____ 38. the ratio of the mass of a substance to the volume of the substance
____ 39. a measure of the ability of a mineral to resist scratching
____ 40. characteristics that are particular to only a few types of minerals
____ 41. the color of the powder of a mineral
____ 42. the way in which a mineral reflects light
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extra revision sheet gr 7 Q 4
Answer Section
MULTIPLE CHOICE
1. ANS: A
PTS: 1
2. ANS: A
PTS: 1
3. ANS: D
PTS: 1
4. ANS: C
PTS: 1
5. ANS: D
PTS: 1
6. ANS: A
PTS: 1
7. ANS: B
PTS: 1
8. ANS: A
PTS: 1
9. ANS: B
PTS: 1
10. ANS: A
PTS: 1
11. ANS: A
PTS: 1
12. ANS: B
PTS: 1
13. ANS: A
PTS: 1
14. ANS: B
PTS: 1
15. ANS: C
PTS: 1
16. ANS: C
PTS: 1
17. ANS: A
PTS: 1
18. ANS: D
PTS: 1
19. ANS: C
PTS: 1
20. ANS: D
PTS: 1
21. ANS: A
PTS: 1
22. ANS: A
PTS: 1
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23. ANS: C
PTS: 1
24. ANS: A
PTS: 1
25. ANS: B
PTS: 1
26. ANS: D
PTS: 1
27. ANS: A
PTS: 1
28. ANS: C
PTS: 1
COMPLETION
29. ANS: native element
PTS: 1
30. ANS: feldspar
PTS: 1
31. ANS: density
PTS: 1
32. ANS: chemical
PTS: 1
33. ANS: mineral
PTS: 1
34. ANS: asthenosphere
PTS: 1
35. ANS: outer core
PTS: 1
36. ANS: convergent
PTS: 1
MATCHING
37. ANS: G
PTS: 1
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38. ANS: A
PTS: 1
39. ANS: C
PTS: 1
40. ANS: H
PTS: 1
41. ANS: D
PTS: 1
42. ANS: F
PTS: 1
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