Chapter 23

Question 0

Ellipse

Answer 0

Shape of earths orbit

Question 1

Axis

Answer 1

Imaginary vertical line that cuts through the center of the earth and around which earth spins

Question 2

Equinox

Answer 2

Twice yearly time- spring and fall - the sub is directly above the equator, daylight and nighttime hours are equal

Question 3

Full moon

Answer 3

Phase that occurs when all of the moons surface facing earth reflects light

Question 4

Impact basin

Answer 4

A hollow left on the surface of the moon caused by an object striking it’s surface

Question 5

Lunar eclipse

Answer 5

Occurs when earths shadow falls on the moon

Question 6

Maria

Answer 6

Dark, flat regions on the moon formed when ancient lava reached the surface and filled craters

Question 7

Moon phase

Answer 7

Change in appearance of the moon as viewed from earth , due to the positions of the moon, earth, and sun

Question 8

New moon

Answer 8

Moon phase that occurs when the moon is between the earth and sun , moon cannot be seen

Question 9

Revolution

Answer 9

Earths yearlong elliptical orbit around the sun

Question 10

Rotation

Answer 10

Spinning of earth on its axis, take about 24 hours - cause day and night

Question 11

Solar eclipse

Answer 11

Occurs when the moon passes directly between the sun and earth and casts a shadow over part of the earth, part of the sun is blocked out

Question 12

Solstice

Answer 12

Twice yearly - summer and winter- the sun reaches it’s greatest distance north or south of the equator

Question 13

Sphere

Answer 13

Round, 3- dimensional object

Question 14

Waning

Answer 14

Describes phases that occur after a full moon

Question 15

Waxing

Answer 15

Describes phases following a new moon