Download Sun, Earth, and Moon

Sun, Earth, and
Moon
Presented by
Daphnie Poole
Earth ScienceTeacher
I bet you know the answers!
•
•
•
•
•
•
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?
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.
We breathe:
• 78% nitrogen
• 21% oxygen
•
1% argon, neon,
nitrogen
80
60
40
20
0
per
cen
nitrogen 78
oxygen 21
1
trace
oxygen
trace
carbon dioxide,
neon, & krypton
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
Answer: Sun, Earth, then moon
• The sun is the largest
• Next in size is the Earth.
• The moon is smaller than the Earth
• Which of these
is the biggest?
•
•
•
•
F
G
H
J
The moon
The Earth
The sun
Jupiter
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.
Earth Patterns,Cycles, and
Change
• The sun heats the Earth
•
•
•
•
unevenly, making the poles cold
and the tropics hot, becauseA 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
• The moon revolves around •
•
•
•
F
G
H
J
itself
the Earth
the sun
the solar system
• 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.
Earth Science Question: rotation
• What is rotation? (define)
• The rotation of the Earth on its axis causes•
•
•
•
A
B
C
D
days
months
seasons
years
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).
Earth Science Question:
• Which of these shows
the location of a polar
ice cap?
• Which of these shows
the location of the
equator?
Polar ice caps= A
Equator= C
Which of these is caused by the
turning of the Earth?
•
•
•
•
F
G
H
J
Summer and winter
Stars
Day and night
Moon phases
The turning of the Earth causes
•Day &
Night
When the moon is seen from the
Earth as a whole circle, it is
called a
FULL MOON.
Phases of the Moon
• The lunar phase or phase of the moon is
the shape of the illuminated (sunlit) portion
of the Moon as seen by an observer, usually
on Earth.
• The lunar phases change cyclically as
the Moon orbits the Earth, according to the
changing relative positions of the
Earth, Moon, and Sun.
The Phases
• New Moon
• If the Moon is on the same side of the Earth as
the Sun, then the face of the Moon that can be
seen from the Earth is no longer illuminated by
the Sun's rays — as only the opposing side is
facing the Sun. As a result, it is invisible in the
Earth's sky.
Waxing Moon
• The term used to describe the period of the
Moon as it moves from a New Moon to a
Full Moon, increasing in visibility with
respect to an Earth-bound observer.
• Waxing crescent
Waxing Gibbous
Crescent Moon
• The famous image of the Moon frequently used
in the media, consisting of only a thin crescent
slice of the Moon being visible from Earth.
• This phase of the moon occurs just after the New
Moon phase, which is also known as Dark of the
Moon. There is also a Crescent Moon phase just
prior to the next New Moon as well.
Gibbous Moon
• There are two Gibbous phases of the Moon,
with the first representing the growing
moon between the First Quarter and the Full
Moon and the second when it describes the
Moon growing smaller as it shrinks down
from the Full Moon to the Last Quarter.
Half Moon
• Term that is used to describe the First
Quarter Moon and the Last Quarter Moon.
• First Quarter
Last Quarter
Full Moon
• During this phase of the Moon it is entirely
illuminated and visible from the Earth. The
Moon is opposite the Sun in this phase, with
the Earth in between.
When the moon is seen from the
Earth as a whole circle, it is
called a•
•
•
•
A
B
C
D
Crescent moon
Full moon
Half moon
New moon
The next major phase of the
moon would be…
• First quarter.
• Just think about it…the
• New moon (can only get bigger.
•
•
•
•
Or = Waxing)..
Then comes Waxing crescent
…next is
First quarter…then
Waxing Gibbous and then a
Full Moon.
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
The revolution of the Earth
around the Sun takes•
•
•
•
A
B
C
D
a day & night or 12 hours
a week or 7 days
a month or 29-31 days
a year or 365 days
The revolution of the Earth
around the sun
• Takes 365 days
• or one year.
• NOTE:
• Due to the tilt of the
Earth’s axis during
revolution, the Earth
experiences seasons.