CH 29.2

Question 1

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

Answer 1

Time Zone

Question 2

The spinning of Earth on its axis, an imaginary line drawn from Earth’s North Pole to its South Pole.

Answer 2

Rotation

Question 3

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

Answer 3

Revolution

Question 4

The plane of Earth’s orbit around the sun.

Answer 4

Ecliptic

Question 5

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

Answer 5

Solstice

Question 6

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

Answer 6

Equinox

Question 7

Who devised a method of timekeeping around 3000 B.C.?

Answer 7

The Babylonians

Question 8

What was the symbol for degree taken from?

Answer 8

The sun

Question 9

How many degrees does Earth spin in one day?

Answer 9

360 degrees

Question 10

How many hours does it take the earth to make one full rotation?

Answer 10

24 hours

Question 11

How many degrees does earth spin in one hour?

Answer 11

15 degrees

Question 12

What direction does the sun rise?

Answer 12

In the east

Question 13

What direction does the sun set?

Answer 13

In the north

Question 14

True or False. All time zones are exact same size?

Answer 14

False, they are modified to fit around cities, states, and country borders, and other key sites.

Question 15

How many zones are there in the world?

Answer 15

24

Question 16

Which direction do you move to add hours to the time?

Question 17

Which direction do you move to subtract hours from the time?

Answer 17

West

Question 18

How many time zones are there in the United States?

Question 19

What are the names of the time zones?

Question 20

What is a solar day?

Answer 20

A full rotation from noon to noon

Question 21

What is a sidereal day?

Answer 21

When we look at a specific star and make a full rotation back to the star

Question 22

What are two main reasons for seasons?

Answer 22

THe tilt of the earth and revelation

Question 23

Which 2 seasons have solstice?

Question 24

Which month is the summer solstice?

Question 25

Which month is the winter solstice?

Question 26

Which two season are equinoxes?

Question 27

Which month is the spring equinox?

Question 28

Which month is the fall equinox?

Question 29

When is the longest day of the year?

Question 30

When is the shortest day of the year?

Question 31

When are the days almost 12 hours of day and 12 hours of night?