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The Moon Astronomy Page 9 ©Mark Place, 2009-2010 www.LearnEarthScience.com Why so many? Craters What are these? No atmosphere Why is Earth not like this? weathering, erosion, atmosphere Phases of the Moon Astronomy Page 10 What causes the phases of the moon? The moon's

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Presentation Transcript
slide1

The Moon

Astronomy

Page 9

©Mark Place, 2009-2010

www.LearnEarthScience.com

slide2

Why so many?

Craters

What are these?

No atmosphere

Why is Earth not like this?

weathering, erosion, atmosphere

slide3

Phases

of the

Moon

Astronomy

Page 10

slide4

What causes

the phases

of the moon?

The moon's

revolution

around Earth.

slide5

How long does

one revolution of

the moon take?

27.3 days

How long does

one rotation of

the moon take?

ESRTs p15

slide6

What phenomenon

does this explain?

We only ever see one

side of the moon.

slide7

Why does the moon

rise later each day?

because as the Earth

rotates, the moon

revolves

slide8

What phase of the moon is this?

New

Gibbous

New

Crescent

3rd

Quarter

slide9

How many hours is the

moon visible each day?

12 hours

slide10

What is "waxing"?

more of the moon's

surface can be seen

slide11

What is "waning"?

less of the moon's

surface can be seen

slide12

The phases of the

moon are what type

of event?

Cyclic