Sun, Earth, and Moon

1
Sun, Earth, and Moon
2

• What causes day night?
• Which one is bigger the earth or the moon?
• Where does the moon get its light from?
• What percent of the earth is always lit by the
  sun?
• How many stars are in our solar system?
• How many days does it take for the Earth to
  revolve around the sun?
• How many low and high tides on Earth every 24
  hours?

3
The Earth

• -is the third planet from the Sun,
• -is an oblated sphere,
• -rotates on its imaginary
• axis counterclockwise every
• 24 hours or 1 day,
• -appears blue in space
• because it is 70 water,
• -revolves around the sun every
• 365 days or 1 year.

4
We breathe

• 78 nitrogen
• 21 oxygen
• 1 argon, neon, carbon dioxide, neon, krypton

5
Which one is the smallest?Which one is the
largest?

• Can you put these in size order?
• Place the following in order from largest to
  smallest.
• Moon
• Sun
• Earth

6
Answer Sun, Earth, then moon

• The sun is the largest
• Next in size is the Earth.
• The moon is smaller than the Earth.

7
2000 SOL 4.7

• Which of these is the biggest?
• F The moon
• G The Earth
• H The sun
• J Jupiter

8
Answer H The sun is the largest!

• Our sun is the only star in our solar system. The
  sun is also the largest heavenly body in our
  solar system.

9
Earth Patterns,Cycles, and Change - SOL 3.7, 4.7

• The sun heats the Earth unevenly, making the
  poles cold and the tropics hot, because-
• A the tropics face more directly
• toward the sun
• B the poles are covered with ice
• which causes cold air
• C seasons change
• D weather changes

10
2001 SOL 3.7 4.7

• The moon revolves around -
• F itself
• G the Earth
• H the sun
• J the solar system

11

• The moon revolves or orbits the Earth once every
  29 days.
• We all ways see the same side of the moon because
  the moon rotates and revolves at about the same
  speed.

12
Earth Science Question rotation

• What is rotation? (define)
• The rotation of the Earth on its axis causes-
• A days
• B months
• C seasons
• D years

13
Rotation causes day night.

• Rotation is the turning or spinning of the Earth
  in one place on its imaginary axis.
• Rotation of the earth on its axis causes day
  night. (answer A).

14
Earth Science Question
A

• Which of these shows the location of a polar ice
  cap?
• Which of these shows the location of the equator?

B
C
C
D
15
Polar ice caps A Equator C
90º latitude
0º latitude
16
Which of these is caused by the turning of the
Earth?

• F Summer and winter
• G Stars
• H Day and night
• J Moon phases

17
The turning of the Earth causes

• Day Night

18
When the moon is seen from the Earth as a whole
circle, it is called a-

• A Crescent moon
• B Full moon
• C Half moon
• D New moon

19
When the moon is seen from the Earth as a whole
circle, it is called aFULL MOON.
20
Which of these is the next phase of the moon?

• New Moon --- Waxing Crescent --- ?
• F Full Moon
• G Waning Crescent
• H First Quarter
• J Waxing Gibbous

21
The next major phase of the moon would be

• First quarter.
• Just think about itthe
• New moon (can only get bigger. Or Waxing)..
• Then comes Waxing crescent next is
• First quarterthen
• Waxing Gibbous and then a
• Full Moon.

22
The revolution of the Earth around the Sun takes-

• A a day night or 12 hours
• B a week or 7 days
• C a month or 29-31 days
• D a year or 365 days

23
The revolution of the Earth around the sun

• Takes 365 days
• or one year.
• NOTE
• Due to the tilt of the Earths axis during
  revolution, the Earth experiences seasons.