Monday, February 17
Do Now
Page 54
Standard 6E11
Title Earth Rotation and Revolution Do Now
LEQ What would the results be if the moon did not revolve
around the Earth?
Directions:
1. COPY this diagram into your notebook. Make sure to
include the labels A and B in your drawing.
2. Answer this question in a full sentence: Approximately
how many months does it take Earth to move from position
A to position B?
This week’s vocabulary words:
 Rotate
 Revolve
 Axis
 Satellite
 Tides
 Eclipse
 Solar
 Lunar
 Shadow
 Illuminate
 Waning
 Waxing
Take 2 minutes to copy these down onto your blank sheet of paper.
 Moon phases are the different forms that the moon takes in
its appearance from Earth.
 The phase of the moon we see on a given day depends on the
positions of the moon, Earth, and sun. Remember, the
moon does not produce its own light, it only reflects light from
the sun.
 Our moon passes through 8 different phases during a cycle.
 The cycle repeats itself every 29.5 days.
 The sun always lights up half of the moon’s surface, while half of
it is left dark. The amount of the bright side we see changes as
the moon revolves around Earth.
 When the moon is directly between the Earth and the sun, we see
nothing at all. This is a new moon.
 When the moon is on the opposite side of the Earth from the sun,
we see the entire bright side of the moon, a full moon.
New Moons & Full Moons
 After a new moon, as more and more of the bright side of
the moon becomes visible, the moon is waxing, or
“growing”.
 The amount of moon we see waxes until we reach a full
moon.
 After a full moon, as less and less of the bright side of the
moon becomes visible, the moon is waning, or
“shrinking”.
 The amount of the moon we can see wanes until we reach a
new moon.
Waxing & Waning Moons
 When the moon is waxing, the illuminated side is to
your right. When the moon is waning, the illuminated
side is to your left.
Gibbous & Crescent Moons
 When more than half of the moon is illuminated in the
sky, we call it a gibbous moon.
 When less than half of the moon is illuminated in the sky,
we call it a crescent moon.
First and Third Quarter Moons
 As the moon is waxing (growing), when we see exactly
half of the moon it is called a first quarter moon.
 When we see half of a waning moon, it is a third quarter
moon.
 In a first quarter moon the illuminated side is to your
right, and in a third quarter moon it is to your left.
When we describe a moon phase, it’s
important that we say whether its
waxing or waning AND whether it
is a gibbous or crescent moon.
Phase Practice
Phase Practice
Phase Practice
Phase Practice
Phase Practice
Phase Practice
Phase Practice
Phase Practice
Exit Ticket
Identify the phase of the moon shown in each picture.
1.
2.
3.
Draw the phase of the moon listed for questions 4 & 5.
4. Waning Gibbous
5. Waxing Crescent
Tuesday, February 18
Do Now
Page
Standard
Title
LEQ
Directions:
1. COPY this diagram into your notebook. Make sure to
include the labels (Sun, Earth, Moon) in your drawing.
2. Answer this question in a full sentence: Approximately
how long does it take the moon revolve once around
Earth?