chapter 29

Question 1

an area 15 degrees wide in which the time is the same

Answer 1

time zone

Question 2

is the spinning of earths on its axis

Answer 2

rotation

Question 3

is the motion of earths in an elliptical orbit around the sun

Answer 3

revolution

Question 4

the plane of earths orbit around the sun

Answer 4

ecliptic

Question 5

occurs when earths rotational axis is tilted directly toward the sun or away from the sun

Answer 5

solstice

Question 6

earths rotational axis is perpendicular to a line drawn from the center of earth to the center of the sun

Answer 6

equinox

Question 7

what is an umbra

Answer 7

the darkest point of the moons shadow

Question 8

how is the earths moon and sun alligned during a lunar eclipse?

Answer 8

sun and moon

Question 9

how are depressions on the moon formed?

Answer 9

meteorites, asteroids, and comets

Question 10

what is the giant impact theory?

Answer 10

mars size object collided with the earth causing debris to be thrown into orbit which condensed into a large mass forming the moon