Vocabulary CH 29.1

Question 1

Sphere

Answer 1

is a round, three-dimensional object, the surface of which is the same distance from the center in all directions.

Question 2

ellipse

Answer 2

is an elongated, closed curve with two foci

Question 3

time zone

Answer 3

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

Question 4

rotation

Answer 4

is the spinning of Earth on its axis, an imaginary line drawn from Earths North pole to its South pole.

Question 5

Revolution

Answer 5

is the motion of Earth in an elliptical orbit around the sun.

Question 6

Ecliptic

Answer 6

is defined as the plane of Earth’s orbit around the sun.

Question 7

Solstice

Answer 7

occurs when Earth’s rotational axis is tilted directly toward the sun or away from the sun.

Question 8

equinox

Answer 8

Earth’s rotational axis is perpendicular to a line drawn from the center of Earth to the center of the sun