29

Question 1

sphere

Answer 1

round, 3 dimensional object, the surface of which is the same distance from the center in all directions

Question 2

ellipse

Answer 2

an elongated, closed curve with two foci

Question 3

is earth a perfect sphere

Answer 3

no

Question 4

what are two things that affect gravitational forces

Answer 4

the masses of each object and the distance between them

Question 5

which diameter of earth is the longest

Answer 5

equator

Question 6

what does the magnetic do for earth

Answer 6

protects us from harmful radiation from the sun

Question 7

which magnetic pull is in the norther hemisphere

Answer 7

south magnetic pole

Question 8

can these magnetic poles flip

Answer 8

yes

Question 9

what degrees is earths axis tilted at

Answer 9

11.7

Question 10

what is the flipping of the north and south magnetic pull called

Answer 10

magnetic reversal

Question 11

how often do reversals occur

Answer 11

200000 years

last occured 780000 years ago

Question 12

how often do magnetic reversals occ

Question 13

what is a magnetosphere

Answer 13

feflects harmful radiaion from the sun

Question 14

how are the auroras created

Answer 14

electrically charged particles collide with atoms in the atmosphere

Question 15

what is the scientific name for the nortehrn and soutehrn

Answer 15

boreslis and australis

Question 16

when is earth closest to the sun

Answer 16

early january

about 147 km

Question 17

when is earth farthesy from the sun

Answer 17

early july

Question 18

time zone

Answer 18

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

Question 19

rotation

Answer 19

the spinning of earth on its axis, imaginary line drawn from earths north pole to its south pole

Question 20

revolution

Answer 20

the motion of earth in an elliptical orbit around the sun

Question 21

eliptic

Answer 21

defined as the plane of earths orbit around the sun

Question 22

solstice

Answer 22

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

Question 23

equinox

Answer 23

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

Question 24

tide

Answer 24

rise or fall in the ocean surface

Question 25

moon phase

Answer 25

reflects the change in appearance of the moon as sen from earth

Question 26

solar eclipse

Answer 26

occurs when the moon moves directly between the sun and earth and casts a shadow on earth

Question 27

lunar eclipse

Answer 27

occurs when earth passes between the sun and the moon and casts a shadow on the moon

Question 28

maria

Answer 28

the dark colored flat lava filled regions on the moons surface

Question 29

regolith

Answer 29

layer of dusty lunar material produced by collisions between asteroids and comets and the moon

Question 30

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

Answer 30

Babylonians

Question 31

What was the symbol for degree taken from?

Answer 31

The Babylonian symbol for the sun

Question 32

How many degrees does the earth spin in one day?

Answer 32

360 degrees

Question 33

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

Answer 33

24 hours

Question 34

How many degrees does the earth spin in one hour?

Answer 34

15 degrees

Question 35

What direction does the sun rise?

Answer 35

East

Question 36

What direction does the sun set?

Answer 36

West

Question 37

True or false. All time zones are the exact same size?

Answer 37

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

Question 38

How many time zones are there in the world?

Answer 38

24 time zones

Question 39

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

Answer 39

East

Question 40

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

Answer 40

West

Question 41

How many time zones are there in the United States?

Answer 41

6 time zones

Question 42

What are the names of the time zones?

Answer 42

``` Mountain time zone Eastern time zone Pacific time zone Alaskan time zone Central time zone Hawaiian time zone ```

Question 43

What is a solar day?

Answer 43

The earth’s rotation from the sun in the sky from noon one day to noon the next day

Question 44

What is a sidereal day?

Answer 44

When a certain star rises above the horizon until that same star rises again

Question 45

What are the two main reasons for seasons?

Answer 45

The axis tilt and how close earth is to the sun

Question 46

Which 2 seasons have a solstice?

Answer 46

Summer and Winter

Question 47

Which month is the summer solstice?

Answer 47

June

Question 48

Which month is the winter solstice?

Answer 48

December

Question 49

Which two seasons are equinoxes?

Answer 49

Spring and Fall

Question 50

Which month is the spring equinox?

Answer 50

March

Question 51

Which month is the fall equinox?

Answer 51

September

Question 52

When is the longest day of the year?

Answer 52

During the Summer Solstice

Question 53

When is the shortest day of the year?

Answer 53

During the Winter Solstice

Question 54

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

Answer 54

During the spring equinox and during the fall equinox

Question 55

how many days does it take the moon to revolve around earth

Answer 55

27.3 days

Question 56

a complete lunar phases cycle takes 29.5 days, what is this called

Answer 56

synodic month

Question 57

do we ever see the back side of the moon

Answer 57

no

Question 58

what causes a tide to rise or fall

Answer 58

gravitational pull of the sun and the moon

Question 59

what is the rise of sea level

Answer 59

high tide

Question 60

after the sea level rises how many hours does it take for the sea level drop

Answer 60

6 hours

Question 61

is the sun or moon farther from earth

Answer 61

sun

Question 62

does the moon or sun cause a greater effect on earths tide

Answer 62

moon

Question 63

how are the sun, earth, and moon aligned for spring tides

Answer 63

straight line in exact order

Question 64

how are the sun, earth, and moon aligned for neap tides

Answer 64

90 degree angle

Question 65

what does the phase of the moon you see depend on

Answer 65

positions of the moon, earth, and the sun relative to one another

Question 66

when does a new moon occur

Answer 66

when the moon is between the earth and the sun

Question 67

how many phases of the moon are there

Answer 67

8

Question 68

what is the definition of waxing phases

Answer 68

the illuminated portion that we see appears larger each night

Question 69

what is the definition of waning phases

Answer 69

the illuminated portion that we see appears smaller each night

Question 70

what are the moon phase names

Answer 70

``` new waning cresent 3rd quarter waning gibbious full waxing gibbious 1st quarter ```

Question 71

where is the word month derived from

Answer 71

moon

Question 72

how are the earth, moon, and sun aligned during a lunar eclipse

Answer 72

earth passes directly between the sun and moon

Question 73

how are the depressions on the moon formed

Answer 73

by meteoroids, asteroids, and comets

Question 74

are there mountains on the moon

Answer 74

yes

Question 75

which side of the moon is thicker

Answer 75

back side

Question 76

is the mantle of the moon a solid or liquid

Answer 76

solid

Question 77

what did the clementine spacecraft do | 2 things

Answer 77

confirmed the thickness of the crust | mineral content

Question 78

what did the lunar prospector do | 3 things

Answer 78

took photos of the moon surface confirmed the moon has a small iron rich core evidence of the presence of water ice

Question 79

what is the giant impact theory

Answer 79

the moon formed 4.6 billion years ago when a mars sized object collided with earth causing debris thrown into orbit