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6th Grade MIDTERM > 6th Grade Science MIDTERM: Chapter 3 > Flashcards

6th Grade Science MIDTERM: Chapter 3 Flashcards

1
Q

Renewable or Nonrenewable

coal

A

Nonrenewable

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2
Q

Renewable or Nonrenewable

geothermal energy

A

Renewable

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3
Q

Renewable or Nonrenewable

hydroelectric energy

A

Renewable

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4
Q

Renewable or Nonrenewable

natural gas

A

Nonrenewable

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5
Q

Renewable or Nonrenewable

nuclear energy

A

Nonrenewable

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6
Q

Renewable or Nonrenewable

petroleum

A

Nonrenewable

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7
Q

Which energy resource is not a fossil fuel?

a. coal
b. hydroelectric energy
c. natural gas
d. petroleum

A

b. hydroelectric energy

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8
Q

Which problem would not occur as a result of using fossil fuels?

a. air pollution
b. oil soils
c. radioactive pollutiond. production of soot and sulfur gases

A

c. radioactive pollution

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9
Q

A farmer needs to keep his fields from eroding during the seasons that crops are not planted on them. Which method should he use?

a. using contour plowing
b. planting a ground cover
c. letting the fields lie fallow for a season
d. digging for minerals

A

b. planting a ground cover

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10
Q

A farmer has grown corn on several fields for the last 30 years, but now corn production is steadily decreasing. What can the farmer do to increase corn production?

a. planting a ground cover
b. using contour planting
c. letting the fields lie fallow for a season
d. using geothermal energy

A

c. letting the fields lie fallow for a season

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11
Q

Which disadvantage is associated with the use of wind energy and solar energy?

a. requires heavy maintenance
b. causes pollution
c. requires large land areas
d. does not use water

A

c. requires large land areas

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12
Q

What is an advantage of using geothermal energy?

a. lessens water pollution
b. provides water for recreation
c. produces radioactive hazards
d. plants are inexpensive to build and operate

A

d. plants are inexpensive to build and operate

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13
Q

Which is not an advantage of using windmills to provide wind energy?

a. requires steady wind
b. does not cause pollution
c. is a renewable resource
d. requires little maintenance

A

a. requires steady wind

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14
Q

Water stored beneath the surface of the earth is called ____.

A

ground water

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15
Q

formed when the remains of plants and animals are buried quickly

A

fossil fuel

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16
Q

factory that separates crude oil into different products

A

refinery

17
Q

mineral used to produce nuclear energy

A

uranium

18
Q

concentrated area of specified mineral

A

vein

19
Q

solid substance found naturally in the earth’s surface

A

mineral

20
Q

layer of sand, gravel, or bedrock that holds and moves ground water

A

aquifer

21
Q

floating ice sheet

A

ice shelf

22
Q

forms when sea water freezes

A

sea ice

23
Q

water returns to the sky through _____ and evaporation

A

transpiration

24
Q

What are all the materials available on Earth for man’s use called?

A

natural resources

25
Q

What are some advantages and disadvantages of nuclear energy?

A

Nuclear power is efficient and clean but can be dangerous if not carefully controlled. Radiation can escape from a nuclear plant and cause pollution and health problems. Used fuel needs special storage to keep it from harming the environment.

26
Q

What are some ways that the oceans provide for man?

A

The oceans provide fresh water through the water cycle, play a key role in the carbon dioxide-oxygen cycle, provide oxygen by photosynthesis of phytoplankton, and influence climates.

27
Q

Explain 3 things you can do to help conserve natural resources

A
  • Reduce the amount of energy used.
  • Reuse materials that would otherwise be thrown away.
  • Recycle those resources that can be made into other products.
28
Q

True or False

A nonrenewable resource can be replaced by natural means in a relatively short period of time.

A

False

29
Q

True or False

Malleable metals are able to be dented or shaped.

A

True

30
Q

True or False

Aluminum is the most abundant metal in the earth’s crust.

A

True

31
Q

True or False

All of the Earth’s water is referred to as the biosphere.

A

False

32
Q

True or False

Geothermal energy uses steam to turn turbines to produce electricity.

A

True

33
Q

True or False

Hydroelectric energy uses windmills to control the flow of water.

A

False

6th Grade MIDTERM (5 decks)

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