CH 29.3

Question 1

Periodic rise and fall in sea level caused by gravitational attraction among Earth, the Moon and the Sun

Answer 1

Tide

Question 2

Change in appearance of the Moon as viewed from Earth, due to the relative positions of Earth, the Sun, and the Moon

Answer 2

Moon Phase

Question 3

Occurs when the Moon passes between the Sun and Earth, and casts a shadow on part of Earth

Answer 3

Solar Eclipse

Question 4

Occurs when Earths shadow falls on the moon

Answer 4

Lunar Eclipse

Question 5

Relatively flat, dark-colored regions on the Moon’s surface

Answer 5

Maria

Question 6

Layer of loose, ground-up rock on the lunar surface formed by the accumulation of impact material

Answer 6

Regolith

Question 7

How many days does it take the moon to revolve around Earth?

Answer 7

27.3 days

Question 8

A complete lunar phase cycle takes 29.5 days, what is it called?

Answer 8

Synodic Month

Question 9

Do we ever see the back side of the moon?

Answer 9

No

Question 10

What causes a tide to rise or fall?

Answer 10

The gravitational pulls of the sun and moon

Question 11

What is the rise of sea level called?

Answer 11

High tide

Question 12

After the sea level rises how many hours does it take for the sea level to drop?

Answer 12

Six hours

Question 13

Which is farther from Earth, the sun or the moon?

Answer 13

The sun

Question 14

Does the moon or the sun cause a greater effect on Earth’s tides?

Answer 14

The moon

Question 15

How are the sun, the Earth, and the moon aligned for a spring tide?

Answer 15

There in a straight line the sun, earth, and moon.

Question 16

How are the sun, the Earth, and the moon aligned for a neap tide?

Answer 16

90 degree angle

Question 17

What does the phase of the moon you see depend on?

Answer 17

On the positions of the moon, earth, and sun relative to one another

Question 18

When does a new moon occur?

Answer 18

When the moon is between earth and the sun

Question 19

How many phases of the moon are there?

Answer 19

8 phases

Question 20

What is the definition of waxing phases?

Answer 20

The illuminated portion that we see appears larger each night

Question 21

What is the definition of waning phases?

Answer 21

They are less illuminated as the nights go on

Question 22

What are the moon phase names?

Answer 22

New, waxing crescent, 1st quarter, waxing gibbous, full, waning gibbous, 3rd quarter, and waning crescent

Question 23

Where is the word month derived from?

Answer 23

The same root word word as Moon

Question 24

How is the earth, moon, and sun aligned during a solar eclipse?

Answer 24

Sun moon earth

Question 25

What is an umbra?

Answer 25

the darkest portion of the moon’s shadow on earth

Question 26

What is a penumbra?

Answer 26

A partial solar eclipse

Question 27

How is the earth, moon, and sun aligned during a lunar eclipse?

Answer 27

Moon, Earth, and Sun

Question 28

How are the depressions on the moon formed?

Answer 28

By meteorites, asteroids, and comets

Question 29

Are there mountains on the moon?

Answer 29

Yes

Question 30

Which side of the moon is thicker?

Answer 30

The dark side of the moon

Question 31

Is the mantel of the moon a solid or a liquid?

Answer 31

Solid

Question 32

What did the Clementine spacecraft do? (2 things)

Answer 32

1. It conformed the thickness on the moon.

2. It provided information on the mineral content of Moon rocks.

Question 33

What did the Lunar Prospector do? (3 things)

Answer 33

1. It took pictures of the moon
2. Confirmed the moon has a small iron-rich core
3. Collected evidence that there is presence of water-ice on the moon

Question 34

What is the Giant Impact Theory?

Answer 34

Mars sized object collided with earth, where debris were thrown into orbit, then condensed into a large mass forming the moon.