chapter 29.2

Question 1

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

Answer 1

Babylonians

Question 2

what was the symbol of degree taken from?

Answer 2

The sun

Question 3

How many degrees does the earth spin in one day?

Answer 3

360 degrees

Question 4

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

Answer 4

24 hours

Question 5

How many degrees does the earth spin in one hour?

Answer 5

15 degrees

Question 6

what direction does the sun rise?

Answer 6

east

Question 7

what direction does the sun set?

Answer 7

west

Question 8

true or false . all time zones are the exact same size?

Answer 8

false, they are modified to fit around cities, states, and country borders, and other key cites

Question 9

how many times zones are there in the world?

Answer 9

24

Question 10

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

Answer 10

east

Question 11

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

Answer 11

west

Question 12

how many time zones are there in the United states?

Answer 12

6 times zones

Question 13

what are the names of the times zones?

Answer 13

Atlantic time / Alaskan time 
mountain times 
pacific time 
central time 
Eastern time
Hawaiian time

Question 14

what is solar day?

Answer 14

when the sun is right above us and the sun goes back there for another day noon one day until noon the next day

Question 15

what is sidereal day?

Answer 15

when earth rotates from a start so you have a star and then the earth rotates and and you have that star again

Question 16

what are the two main reasons for seasons?

Answer 16

earths’ tilt

earth’s orbit around the sun

Question 17

which 2 seasons have a solstice?

Answer 17

summer and winter

Question 18

which month is the summer solstice?

Answer 18

June 21

Question 19

which month is the winter solstice?

Answer 19

December 21

Question 20

which two seasons are equinoxes?

Answer 20

spring and fall

Question 21

which month is the spring equinox?

Answer 21

March 20-21

Question 22

which month is the fall equinox?

Answer 22

September 22-23

Question 23

when is the longest day of the year?

Answer 23

summer solstice

Question 24

when is the shortest day of the year?

Answer 24

December solstice

Question 25

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

Answer 25

March and September