Science Unit 1 Chapter 5 - 6th Grade

Question 1

5.1

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

Answer 1

energy

Question 2

5.1

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

Answer 2

nonrenewable resources

Question 3

5.1

Uranium and fossil fuels are both what type of energy resource

Answer 3

nonrenewable

Question 4

5.1

Uranium is used in what?

Answer 4

nuclear reactions

Question 5

5.1

What are 2 examples of fossial fuels?

Answer 5

coal and oil

Question 6

5.1

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

Answer 6

renewable resources

Question 7

5.1

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

Answer 7

solar enger

renewable energy resource

Question 8

5.1

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

Answer 8

nonrenewable, fossil fuels

Question 9

5.1

Coal and oil are sometimes called

Answer 9

pertoleum

Question 10

5.1

Give me 3 examples of fossil fuels.

Answer 10

coal, oil, and natural gas

Question 11

5.1

How are fossil fuels formed?

Answer 11

Remains of organisms that lived long ago

Question 12

5.1

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

Answer 12

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

Question 13

5.1

How is coal formed?

Answer 13

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

Question 14

5.1

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

Answer 14

anthracite

Question 15

5.1

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

Answer 15

plankton

Question 16

5.1

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

Answer 16

impermeable rock

Question 17

5.1

What are the two advanages of fossil fuels?

Answer 17

inexpensive and easy to transport

Question 18

5.1

What are three disadvantages of fossil fuels?

Answer 18

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

Question 19

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

Answer 19

It becomes more acidic

Question 20

5.1

Engergy released from atomic reactions is called

Answer 20

nuclear energy

Question 21

5.1

Nuclear power plants produce e,ectricity using what?

Answer 21

nuclear fission

Question 22

5.1

What is the nuclear fission process?

Answer 22

the process splits the atoms

Question 23

5.1

What is the advantage of using nuclear energy?

Answer 23

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

Question 24

5.1

What is the disadvantage of nuclear energy?

Answer 24

nuclear power plants use nonrenewable resource (uranium) for fuel

Question 25

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

Answer 25

reclamation

Question 26

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

Answer 26

vampire energy

Question 27

5.2 | Where does solar energy come from?

Answer 27

sun

Question 28

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

Answer 28

electrical energy

Question 29

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

Answer 29

generators

Question 30

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

Answer 30

active solar energy

Question 31

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

Answer 31

passive solar energy

Question 32

5.2 | A group of wind turbines that produce electricty is called

Answer 32

wind farm

Question 33

5.2 | electricity produced by flowing water is called

Answer 33

hydroelectric power

Question 34

5.2 | To use hyroelectric power what do you need to have.

Answer 34

Dams

Question 35

5.2 | What can be a source of tidal power?

Answer 35

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

Question 36

5.2 | How does the tidal power use water?

Answer 36

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

Question 37

5.2 | Thermal energy from Earth's interior is called?

Answer 37

geothermal energy

Question 38

5.2 | What is geothermal energy used for?

Answer 38

To heat homes and generate electricity in power plants

Question 39

5.2 | Where does the geothermal energy come from?

Answer 39

hot rocks or magma

Question 40

5.2 | what turns turbines?

Answer 40

generators that produce electricity

Question 41

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

Answer 41

biomass engergy

Question 42

5.2 | what is the most widely used biomass?

Answer 42

wood

Question 43

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

Answer 43

ethanol and biodiesel

Question 44

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

Answer 44

1. sugars | 2. corn

Question 45

5.2 | what is biodiesel made from? be specific

Answer 45

vegetable oil and fats

Question 46

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

Answer 46

renewable

Question 47

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

Answer 47

less

Question 48

5.2 | what are two advantages associated with using renewable resources?

Answer 48

some are costly or limited to certain areas

Question 49

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

Answer 49

1. renewabe | 2. 7 percent

Question 50

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

Answer 50

biomass energy

Question 51

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

Answer 51

natural resources

Question 52

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

Answer 52

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

Question 53

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

Answer 53

ores

Question 54

5.3 | What mineral resources are used to make metal products?

Answer 54

metallic minerals like bauxite and hematite

Question 55

5.3 | List 6 nonmetallic minerals resources

Answer 55

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

Question 56

5.3 | List 2 advantages of using land resources

Answer 56

1. easy yo access | 2. crops and trees are renewable

Question 57

5.3 | 2 disadvantages of using the land resources

Answer 57

deforestation and pollution

Question 58

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

Answer 58

deforestation

Question 59

5.3 | Deforestation can lead to 2 things

Answer 59

soil erison and loss of animals habitats

Question 60

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

Answer 60

preserved land

Question 61

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

Answer 61

1. public and private | 2. restorted

Question 62

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

Answer 62

1. farming and grazing

Question 63

5.3 | What technique do organic farming not use

Answer 63

synthetic fertilizers

Question 64

5.3 | How can you help conserve land resources

Answer 64

recycle yard waste and vegetable scraps

Question 65

5.4 | What are two things you can not live with out?

Answer 65

air and water

Question 66

5.4 | What provides energy to your cells?

Answer 66

oxygen from the air

Question 67

5.4 | How does water help protect your body?

Answer 67

it protects body tissues and maintain body temperature

Question 68

5.4 | How do people use water around them?

Answer 68

agriculture, transportation, and recreation

Question 69

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

Answer 69

photochemical smog

Question 70

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

Answer 70

acid precipitation

Question 71

5.4 | Acid precipitation is precipitation that has a pH less than

Answer 71

5.6

Question 72

5.4 | about 97% of water on Earth is what?

Answer 72

salt water

Question 73

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

Answer 73

.9%

Question 74

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

Answer 74

legislation