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6th Grade Science > Science Unit 1 Chapter 5 - 6th Grade > Flashcards

Science Unit 1 Chapter 5 - 6th Grade Flashcards

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1
Q

5.1

This is used for electricity, transportation, and other needs.

A

energy

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2
Q

5.1

Resources that are used faster than they can be replace by natural process are called

A

nonrenewable resources

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3
Q

5.1

Uranium and fossil fuels are both what type of energy resource

A

nonrenewable

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4
Q

5.1

Uranium is used in what?

A

nuclear reactions

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5
Q

5.1

What are 2 examples of fossial fuels?

A

coal and oil

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6
Q

5.1

These resources can be replaced by naural processes in a relatively short amount of time.

A

renewable resources

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7
Q

5.1

Engery from the sun is called what kind of energy and is what kind of energy resouce?

A

solar enger

renewable energy resource

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8
Q

5.1

What type of energy resource do we use to heat houses and run cars?

A

nonrenewable, fossil fuels

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9
Q

5.1

Coal and oil are sometimes called

A

pertoleum

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10
Q

5.1

Give me 3 examples of fossil fuels.

A

coal, oil, and natural gas

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11
Q

5.1

How are fossil fuels formed?

A

Remains of organisms that lived long ago

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12
Q

5.1

The type of ossil fuels that formed depend on 3 things things which are

A

type of organic matter
tmperature and pressure
length of time that the organic matter was buried

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13
Q

5.1

How is coal formed?

A

Dead plants form peat and changes into harder and harder types of coal.

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14
Q

5.1

This is the hardest coal and contains the most carbon per unit of volume and burns most effectiently. What is it?

A

anthracite

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15
Q

5.1

Scientists theoriz that oila nd natural gas formed fromt he remains of microscopic marine organisms called

A

plankton

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16
Q

5.1

Deposits of oil and natural gas formed under what layer of rock?

A

impermeable rock

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17
Q

5.1

What are the two advanages of fossil fuels?

A

inexpensive and easy to transport

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18
Q

5.1

What are three disadvantages of fossil fuels?

A

nonrenewable, obtaining them can disrupt habitats, and causes pollution.

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19
Q

5.1
What happens when chemcals release when fossil fuels are burned and ract with water in the atmospere and make rain and snow?

A

It becomes more acidic

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20
Q

5.1

Engergy released from atomic reactions is called

A

nuclear energy

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21
Q

5.1

Nuclear power plants produce e,ectricity using what?

A

nuclear fission

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22
Q

5.1

What is the nuclear fission process?

A

the process splits the atoms

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23
Q

5.1

What is the advantage of using nuclear energy?

A

a small amount of uranium produces a large amount of energy.

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24
Q

5.1

What is the disadvantage of nuclear energy?

A

nuclear power plants use nonrenewable resource (uranium) for fuel

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25
Q

5.1

The process in which mined land must be recovered with soal and replanted with vegetation is called?

A

reclamation

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26
Q

5.1

the energy used by appliances and other electricnic equipment when they are plugged in but turned off is called

A

vampire energy

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27
Q

5.2

Where does solar energy come from?

A

sun

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28
Q

5.2

Solar cells in watches and calculators captures light energy and transforms it to what type of energy.

A

electrical energy

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29
Q

5.2

While solar power plants generate electricity by transforming energy in sunlight to turn turbines connected to what?

A

generators

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30
Q

5.2

This type of energy uses technology like solar panels to gather and store energy that heats water and homes?

A

active solar energy

31
Q

5.2

This type of energy uses design elements that capture energy in sunlight.

A

passive solar energy

32
Q

5.2

A group of wind turbines that produce electricty is called

A

wind farm

33
Q

5.2

electricity produced by flowing water is called

A

hydroelectric power

34
Q

5.2

To use hyroelectric power what do you need to have.

A

Dams

35
Q

5.2

What can be a source of tidal power?

A

coastal areas that have great differences between high and low tides can be a source of tidal power

36
Q

5.2

How does the tidal power use water?

A

It uses water that flows across turbines as the tide comes in during high tides and as ot goes out during low cards.

37
Q

5.2

Thermal energy from Earth’s interior is called?

A

geothermal energy

38
Q

5.2

What is geothermal energy used for?

A

To heat homes and generate electricity in power plants

39
Q

5.2

Where does the geothermal energy come from?

A

hot rocks or magma

40
Q

5.2

what turns turbines?

A

generators that produce electricity

41
Q

5.2

what type of energy is produced by burning organic matter such as wood, food scraps, and alcohol?

A

biomass engergy

42
Q

5.2

what is the most widely used biomass?

A

wood

43
Q

5.2

what are two vehicle fuels that can be mad from biomass?

A

ethanol and biodiesel

44
Q

5.2

what is ethanol made from and what is an example of it?

A
  1. sugars

2. corn

45
Q

5.2

what is biodiesel made from? be specific

A

vegetable oil and fats

46
Q

5.2

what is the main advantage of usig (blank) energy resources? this will be used for milions of years

A

renewable

47
Q

5.2

renewable energy resources produce more or less pollution than fossil fuels?

A

less

48
Q

5.2

what are two advantages associated with using renewable resources?

A

some are costly or limited to certain areas

49
Q

5.2

what energy currently meets only (blank) percent of U.S. energy needs

A
  1. renewabe

2. 7 percent

50
Q

5.3

What is the most renewable energy resource used in the United States?

A

biomass energy

51
Q

5.3

Something from Earth that livig things use to meet their needs is called?

A

natural resources

52
Q

5.3

The forest is cut down to get wood for ….(5 things)

A
  1. fuel
  2. paper products
  3. wood products
  4. clear land for development
  5. farming
53
Q

5.3

Deposits of minerals that are large enough to be mined for a profit are called

A

ores

54
Q

5.3

What mineral resources are used to make metal products?

A

metallic minerals like bauxite and hematite

55
Q

5.3

List 6 nonmetallic minerals resources

A
  1. sand
  2. gravel
  3. gypsum
  4. halite
  5. sulfur
  6. fluorite
56
Q

5.3

List 2 advantages of using land resources

A
  1. easy yo access

2. crops and trees are renewable

57
Q

5.3

2 disadvantages of using the land resources

A

deforestation and pollution

58
Q

5.3

The cutting of large areas of forest for human activities is called

A

deforestation

59
Q

5.3

Deforestation can lead to 2 things

A

soil erison and loss of animals habitats

60
Q

5.3

on what land is logging and developement banned or strictly controlled?

A

preserved land

61
Q

5.3

according to government regulations, certain lands must be what? what types of land?

A
  1. public and private

2. restorted

62
Q

5.3

land used for WHAT can be managed to conserve soil and improve crop yield?

A
  1. farming and grazing
63
Q

5.3

What technique do organic farming not use

A

synthetic fertilizers

64
Q

5.3

How can you help conserve land resources

A

recycle yard waste and vegetable scraps

65
Q

5.4

What are two things you can not live with out?

A

air and water

66
Q

5.4

What provides energy to your cells?

A

oxygen from the air

67
Q

5.4

How does water help protect your body?

A

it protects body tissues and maintain body temperature

68
Q

5.4

How do people use water around them?

A

agriculture, transportation, and recreation

69
Q

5.4
What is a brownish haze produced when nitrogen compounds and other pollutants in the air react in the presence of sunlight?

A

photochemical smog

70
Q

5.4

This forms when nitrogen and sulfur compunds released when fossil fuels burn react with water in the atmosphere.

A

acid precipitation

71
Q

5.4

Acid precipitation is precipitation that has a pH less than

A

5.6

72
Q

5.4

about 97% of water on Earth is what?

A

salt water

73
Q

5.4

Out of the total amoun of water on Earth only about what percnet is available to people.

A

.9%

74
Q

Who/What can be used to reduce pollution of water and air?

A

legislation

6th Grade Science (7 decks)

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