5th - Science Unit 3 Lesson 5

Question 0

A fuel formed from the decay of ancient forms of life.

Answer 0

Fossil fuel

Question 1

Any remains or imprints of living things from the past.

Answer 1

Fossil

Question 2

The age of one rock or fossil as compared to another.

Answer 2

Relative age.

Question 3

A rock’s age in years.

Answer 3

Absolute age

Question 4

Long stretches of time used to measure Earth’s geological history.

Answer 4

Era

Question 5

A resource that cannot be replaced within a short period of time or at all.

Answer 5

Nonrenewable resource

Question 6

A resource that can be replanted or replaced naturally in a short period of time.

Answer 6

Renewable resources

Question 7

A resource that there is virtually no end to the supply.

Answer 7

Inexhaustible resources

Question 8

Where do fossil fuels come from?

Answer 8

Is a material that formed from the decay of ancient organisms and is used today as a source of energy.

Coal - 1. Dead organisms in a swamp form peat.

        2. Peat is covered with layers of sediment. 
        3. Pressure turns peat into coal. 

Oil & Gas -

        1. Dead organisms fall to the ocean floor. 
        2. Dead organisms are buried in sediment. 
        3. Pressure forms oil and gas.

Question 9

What is used to determine the age of a fossil?

Answer 9

The Law of Superposition - in general, each layer of rock is older than the layer above it and younger than the layer below it.

Question 10

What does sedimentary rock found in fossils tell us?

Answer 10

Almost all fossils are found in sedimentary rock. Scientists can use fossils to learn more about ancient environments.

Question 11

Where does most of earth’s energy come from?

Answer 11

Fossil fuels (?)

Question 12

Where does geothermal energy come from?

Answer 12

Inside the Earth - heat produced inside Earth causes geysers and hot springs.

Question 13

What are some examples of alternate energy sources?

Answer 13

1. Energy from wind - windmills turn the motion of air into electricity.
2. Energy from moving water - dams can generate electricity from water and energy in ocean waves can be captured using turbines.
3. Solar energy- a solar panel captures solar energy
4. Energy in the nucleus of atoms - Nuclear energy
5. Geothermal energy - heat from inside the earth
6. Biomass - plant and animal materials that are used as fuel.

Question 14

Understand that the lower the rock layer, the older the fossil.

Answer 14

If you found one fossil in a top layer of rock and another fossil in a lower layer, the relative age of the fossil in the lower layer is older than the fossil in the higher layer.

Question 15

Name some examples of renewable resources.

Answer 15

Fish, forests, wind, water power, sunlight

Question 16

Name some examples of Nonrenewable resources.

Answer 16

Fossil fuels such as oil, natural gas and coal

Question 17

Name some examples of inexhaustible resources.

Answer 17

Energy from the Sun and wind

Question 18

Be able to list 3 ways to conserve nonrenewable resources.

Answer 18

1. Turn lights off when you leave a room.
2. Turn off electronic equipment when you aren’t using it.
3. Use water-conserving show heads and take shorter showers.
4. Turn off hot water when you aren’t using it.
5. Carpool or use public transportation whenever you can.
6. Turn heat down or air conditioning up when you are not home.
7. Insulate windows and doors to prevent heat loss.

Question 19

Be able to explain the formation of one of the following fossil fuels: oil, natural gas or coal

Answer 19

COAL:

1. Dead organisms in a swamp form peat.
2. Peat is covered with layers of sediment.
3. Pressure turns peat into coal.

OIL AND NATURAL GAS:

1. Dead organisms fall to the ocean floor.
2. The dead organisms are buried in sediment.
3. Pressure forms oil and gas.