1) WHAT C

AUSES TH

E

MOON’S PHASES?

2) WHAT A

RE ECLIP

SES?

CHAPTER 6 L

ESSON 4

PHASES AND E

C L I PSES

O SW

E A R NO T B

Y TH E M

O O N ,

TH ' I

N CO N S TA N T M

O O N

T H AT MO N T H LY C

H A N G E S

I N H

E R CI R

C L E D OR B ,

L E S T TH AT T

H Y LO V E P

R O V E

L I KE W

I SE V

A R I AB L E .

The Moon, as Shakespeare

suggests in Romeo and Juliet, is fickle. Its complex orbit moves it swiftly

across a wide tract of the night and

day skies, changing its appearance

continually in both bold and subtle

ways.

• Only 1 side of the moon faces Earth

• The far side always faces away from Earth

• Moon has a rotation and revolution, just like Earth

• 1 day on the moon = 1 month on the Earth

PHASES OF THE MOON

The Moon’s MotionWhere would the moon's face appear in each view in this diagram that shows the moon's rotation and revolution?

SOLAR ECLIPSE

http://www.youtube.com/watch?v=XmfkskZfT_E

• Happens during the day

• Moon blocks sunlight • DON’T LOOK

DIRECTLY AT THE SUN!

• The next solar eclipse that you will be able to see from North America will be on October 23,2014

SOLAR ECLIPSE

http://www.youtube.com/watch?v=eOvWioz4PoQ

A total solar eclipse only happens in the same city once every 400 years!

Solar EclipseThe diagram shows the moon’s penumbra and umbra during an eclipse.

Phases and Eclipses

LUNAR ECLIPSE

http://www.youtube.com/watch?v=wuhNZejHeBg

The Sun is approximately 93 million miles from Earth. A car going 60 miles an hour would take about 177 years to reach the Sun from Earth.

The Moon is much closer to the Earth. The distance is less than 240,000 miles. A car going 60 miles an hour would take about 5.5 months to reach the Moon from Earth.

HOW CAN A LITTLE MOON HIDE A GIGANTIC SUN???

• Happens at Night

• Must be a full moon

• When the Earth blocks sunlight

• Causes a shadow on the moon.

• The next Total Lunar Eclipse will take place on April 15

LUNAR ECLIPSE

http://www.youtube.com/watch?v=2dk--lPAi04

Lunar EclipseAs the moon moves through Earth’s shadow, total and partial eclipses occur.

Phases and Eclipses

P

P

T

Seasons and ShadowsIdentify what season it is in the Northern Hemisphere, what the phase of the moon is, and what kind of eclipse, if any, could occur.

Phases and Eclipses