Chapter 29.3

Question 1

tide

Answer 1

is a rise or fall in the ocean surface

Question 2

moon phase

Answer 2

reflects the change in appearance of the moon as seen from earth

Question 3

solar eclipse

Answer 3

occurs when the moon moves directly between the sun and earth and casts a shadow on earth

Question 4

lunar eclipse

Answer 4

occurs when earth passes between the sun and the moon and casts a shadow on the moon

Question 5

maria

Answer 5

are the dark- colored, flat, lava- filled regions on the moons surface

Question 6

regolith

Answer 6

is a layer of dusty lunar material produced by collisions between asteroids and comets and the moon

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 this called?

Answer 8

synodic month

Question 9

do we ever see the back side of the moon?

Answer 9

no only one side

Question 10

what causes a tide to rise or fall?

Answer 10

the gravitational pull of the sun and the 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 drop?

Answer 12

6 hours

Question 13

which is farther from earth,the sun or the moon?

Answer 13

sun

Question 14

does the moon or the sun cause a greater effect on earth’s tides?

Answer 14

moon

Question 15

how are the sun, the earth, and the moon aligned for a spring tide?

Answer 15

straight line

Question 16

how are the sun, earth, and the moon aligned for a neap tide?

Answer 16

90 degree angle

Question 17

what does the phrase of the moon you see depend on?

Answer 17

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 the 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

when the illuminated portion that we see appears larger each night

Question 21

what is the definition of waning phases?

Answer 21

when the illuminated portion that we see begins to appear smaller

Question 22

what are the moon phase names?

Answer 22

• new moon
• waxing crescent
• 1st quarter
• waxing gibbous
• full moon
• waning gibbous
• 3rd quarter
• waning crescent

Question 23

where is the word month derived from?

Answer 23

the same root word as Moon

Question 24

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

Answer 24

when the moon moves directly between the sun and earth and casts a shadow on part of Earth

Question 25

what is an umbra?

Answer 25

the darkest portion of the moon’s shadow

Question 26

what is a penumbra?

Answer 26

the partially shaded outer region of the shadow cast by an opaque object

Question 27

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

Answer 27

when only a portion of the moon moves into earths umbra

Question 28

how are the depressions on the moon formed?

Answer 28

• meteorites
• asteroids
• comets

Question 29

Are there mountains on the moon?

Answer 29

yes

Question 30

which side of the moon is thicker?

Answer 30

dark side - back side

Question 31

is the mantle of the moon a solid or a liquid?

Answer 31

solid

Question 32

what did the Clementine spacecraft do? (2 things)

Answer 32

• confirmed the thickness of the crust

- provided information of mineral content of moon rocks

Question 33

what did the Lunar Prospector do? (3 things)

Answer 33

• took photos of the moons surface
• has a small iron- rich core
• collected evidence of water ice

Question 34

what is the Giant Impact Theory?

Answer 34

where scientists thought that a mars side object collided the earth caused debris thrown into orbit that debris condensed into a large mass so called the moon