The Phases of the MoonThe Phases of the Moon

Different Faces in the NightDifferent Faces in the Night

Mrs. GianelosGrade 8 Space Science

Lesson 2.2

Revolution – Moon orbits the Revolution – Moon orbits the Earth every 271/3 daysEarth every 271/3 days

The moon rises in the east The moon rises in the east and sets in the westand sets in the west

The moon rises and sets 50 The moon rises and sets 50 minutes later each dayminutes later each day

Rotation – Moon turns on its Rotation – Moon turns on its axis every 27 daysaxis every 27 days

Same side of Moon always Same side of Moon always faces Earthfaces Earth

FULL

QUARTER

CRESCENT

GIBBOUS

FOUR MAIN SHAPES

Like the earth, half of the Like the earth, half of the moon is always lit by the moon is always lit by the

sun.sun.

Also like the Earth, half of the moon is Also like the Earth, half of the moon is completely dark.completely dark.

The moon does not really change, it The moon does not really change, it travels around the Earth.travels around the Earth.

The different shapes that we see are The different shapes that we see are different views of the same side of the different views of the same side of the moon. moon.

Sometimes we cannot see the new moon Sometimes we cannot see the new moon at all!at all!

New MoonNew Moon

When the moon is When the moon is in between the in between the sun and the Earth, sun and the Earth, we cannot see the we cannot see the moon. This part of moon. This part of the moon is in the the moon is in the shade. shade.

This is called a This is called a new moonnew moon..

Full MoonFull Moon

When the Earth is When the Earth is in between the in between the moon and the moon and the sun, we see the sun, we see the whole part of the whole part of the moon which is lit moon which is lit up by the sun. up by the sun.

This is called a This is called a full full moonmoon..

Quarter MoonQuarter Moon

When the moon is When the moon is above or below above or below the Earth, we can the Earth, we can only see half of only see half of the lit area of the the lit area of the moon.moon.

This is called a This is called a quarter moonquarter moon..

Crescent MoonCrescent Moon

When the moon is When the moon is in between the in between the new moon and the new moon and the half moon, we are half moon, we are only able to see a only able to see a little sliver of the little sliver of the lighted side of the lighted side of the moon.moon.

This is called a This is called a crescent mooncrescent moon..

Waxing and WaningWaxing and Waning New moonNew moon Waxing Crescent moonWaxing Crescent moon First Quarter moonFirst Quarter moon Waxing Gibbous moonWaxing Gibbous moon Full moonFull moon Waning Gibbous moonWaning Gibbous moon Third Quarter moonThird Quarter moon Waning Crescent moonWaning Crescent moon New moonNew moon

earth

moon orbit`searth

last (third)quarter

gibbous moon

full moon

gibbous moon

first quarter

crescent

new moon

crescent

waning Moon

waxing Moon

SUN

As the moon grows larger, As the moon grows larger, towards becoming a full moon, towards becoming a full moon, it is called a it is called a waxing moonwaxing moon..

Right side of moon is litRight side of moon is lit

As the moon grows smaller, As the moon grows smaller, away from being a full moon, it away from being a full moon, it is called a is called a waning moonwaning moon..

Left side of Moon is litLeft side of Moon is lit

http://www.stardate.org/nightsky/moon/

Name this phase!

Full Moon

Name these features.

Name these features.

Craters

Maria

Does this image show us the near side or far side of the moon?

Far SideHow can you tell?

Name this phase!

First Quarter

Name this phase!

Waxing Crescent

Does this image show the near side or the far side of the moon?

Near Side

Name this phase!

Waning Gibbous

Name this phase!

Third Quarter

From what direction does the moon rise?

The East

Name this phase!

Waxing Gibbous

Name this phase!

Waning Crescent

Name this phase!

Look closely!

Waxing Gibbous

Name this phase!

Full Moon

Name this phase!

New Moon

Does the moon rise or set in the west?

It sets in the west.

Name this phase!

Waning Gibbous

Name this phase!

Waning Crescent

Name this phase!

Waning Gibbous

The Phase of the Moon: Let’s The Phase of the Moon: Let’s Experiment with Lunar Lollipops!!!Experiment with Lunar Lollipops!!!

The phase of the Moon depends on the relative position between the Sun, the Earth, and the Moon