section 6b part 1 earth and moon

Question 1

Agree Earth’s air is

Answer 1

much different now compared to when Earth was very young. The air is made of different gases today.

Question 2

Pick life as

Answer 2

what produced the large amounts of oxygen in the air we breathe

Question 3

Match each layer of the Earth with its description.

Answer 3

Agree that at least one of Earth’s layers is liquid or molten rock

Question 4

Pick the correct reason the Earth bulges at its equator

Answer 4

pick

Question 5

See homework QS#3, 2ND page, for help with the next five entries:

Answer 5

• Be able to identify the two main “greenhouse gases” that help keep the Earth warm and can cause global warming.
• Identify what type of light is emitted back upward from the ground after the ground absorbs sunlight.
• Given a list, pick the correct method we use to observe the structure and layers of the Earth’s interior.
• Agree that some seismic waves pass through the body of the Earth, not just along the surface.
• What happens to a seismic wave when entering material of a different density/thickness? (it bends and changes speed)

Question 6

Pick which factors are important for Earth to be able to generate its global magnetic field

Or

answer true or false that Earth can act like a giant magnet.

Answer 6

(metallic and liquid aspects of outer core, heat rising (convection), plus spin of the Earth). Or answer true or false that Earth can act like a giant magnet.

Question 7

Pick the correct reason that most of the solar wind is diverted and thus stays safely away from Earth

What does the Earth’s magnetism protect us from

Answer 7

• Earth’s magnetism

- scraping of gas out of Earth’s air by the solar wind

Question 8

Recognize the name of the divisions of the Earth’s crust _______ and agree their sliding causes _____

Answer 8

• (tectonic plates)

- most earthquakes

Question 9

Recall that the Moon has

Answer 9

no air and no liquid water on its surface.

Question 10

Agree that both the Earth and the Moon

Answer 10

experience the force of tides from one another.

Question 11

Recognize that the Moon

Answer 11

always shows Earth the same face but that no side of the moon is always dark.

Question 12

Realize that the Moon cause two bulges of high tides

Answer 12

in Earth’s oceans on opposite sides of the Earth (not just one)

Question 13

Recall that the Moon has no atmosphere or oceans because

Answer 13

it has too little gravity for holding onto gases.

Question 14

Recognize meteor crashes are the

Answer 14

cause of the craters on the Moon.