chapt 29

Question 1

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

Answer 1

the Babylonians.

Question 2

What was the symbol for degree taken from?

Answer 2

The Babylonian symbol from 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 sites.

Question 9

How many time 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.

Question 13

What are the names of the time zones?

Answer 13

Eastern time, central time, mountain time, pacific time, Atlantic/Alaskan time, and Hawaiian time.

Question 14

What is a solar day?

Answer 14

When the sun is directly above us at noon and does on full rotation to the next day noon.

Question 15

What is a sidereal day?

Answer 15

When Earth rotates based of a star.

Question 16

What are the two main reasons for seasons?

Answer 16

Earths tilt and 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, 21st.

Question 19

Which month is the winter solstice?

Answer 19

December, 21st.

Question 20

Which two seasons are equinoxes?

Answer 20

Spring and Fall.

Question 21

Which month is the spring equinox?

Answer 21

March 20th or 21st.

Question 22

Which month is the fall equinox?

Answer 22

September, 22nd-23rd.

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

Winter solstice.

Question 25

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

Answer 25

March and September.

Question 26

A rise or fall in the ocean surface.

Answer 26

Tide

Question 27

Reflects the chain appearance of the moon as seen on Earth.

Answer 27

Moon phase

Question 28

When the Moon moves directly between the Sun and Earth and casts a shadow on Earth.

Answer 28

Solar eclipse

Question 29

When Earth passes between the Sun and Moon and casts a shadow on the Moon.

Answer 29

Lunar eclipse

Question 30

The dark-colored, flat, lava-filled regions on the Moon’s surface.

Answer 30

Maria

Question 31

A layer of dusty Lunar material produced by collisions between asteroids and comets and the Moon.

Answer 31

Regolith