The Moon A look at our nearest neighbor in Space! PPT

1. What is the Moon:

•         A natural ____________________________

•         One of more than _______________ moons in our Solar System

•         The only moon of the planet ______________________________

2. Location, location, location!

•         About ____________________________________ km from Earth

•         ___________________________________ km in diameter (about ________ the size of Earth)

3. Cut to the Core

•         3 major divisions of the Lunar interior

•         ___________________ - average thickness of about 70 kilometers

•         ___________________

•         ___________________ - radius is between 300 and 425 kilometers

4. The Moon’s Surface

•         No ___________________

•         No liquid ___________________

•         Extreme temperatures

–        Daytime = ___________________°C Nighttime = ___________________°C

___________________Earth’s gravity

5. Lunar Features – Highlands

•         Mountains up to ___________________ m tall

•         Rilles (trenchlike ___________________)

6. Lunar Features – Craters

•         Up to ___________________ km across

•         Most formed by ___________________impact on the Moon

•         Some formed by ___________________action inside the Moon

7. Lunar Features – Maria

•         Originally thought to be “___________________” by early astronomers

•         ___________________ parts of lunar landscape

•         Filled by ___________________ after crash of huge meteorites on lunar surface 3-4 billion years ago

•         Mostly ___________________ rock

8. Movements of the Moon

•         Revolution – Moon orbits the Earth every ___________________days

•         The moon rises in the ___________________ and sets in the ___________________

•         The moon rises and sets ___________________ minutes later each day

•         Rotation – Moon turns on its axis every ___________________ days

•         Same side of Moon ___________________ faces Earth

9. Far Side of the Moon

•         First seen by Luna 3 Russian space probe in 1959

•         Surface features different from near side

–        More ___________________

–        Very few ___________________

–        Thicker ___________________

10. It’s Just a Phase

•         Moonlight is reflected ___________________

•         ___________________the moon’s surface is always reflecting light

•         From Earth we see ___________________ amounts of the Moon’s lit surface

•         The amount seen is called a “___________________”

11. Waxing and Waning (sketch the following)

•         New moon

•         Waxing Crescent moon

•         First Quarter moon

•         Waxing Gibbous moon

•         Full moon

•         Waning Gibbous moon

•         Third Quarter moon

•         Waning Crescent moon

•         New moon

12. FOUR MAIN SHAPES

___________________, ___________________, ___________________, ___________________

13. Moon Rise Times

The new moon always rises at ________________________.

The first quarter moon rises at ________________________.

The full moon rises at ________________________.

The last quarter moon rises at ________________________.

14. Lunar Eclipses

•         Moon moves into ___________________ shadow – this shadow darkens the Moon

               –        ___________________: complete or perfect shadow, direct light from source is cut off

               –        ___________________: partial or imperfect shadow, direct light from source only partially cut off

•         About ___________________per year

•         Last up to ___________________ hours

15. Solar Eclipses

•         Moon moves ___________________ Earth and Sun

•         Moon casts a ___________________ on part of the Earth

•         Total eclipses rare – only once every 360 years from one location!

16. The Tides

•         Tides caused by pull of Moon’s ___________________on Earth

•         High tide –

–        Side facing Moon and side away from Moon

–        Every ___________________ hours, ___________________ minutes

•         Low tide –

–        On sides of Earth

17. Exploring the Moon

•         1950s to 1960s - probes

•         ___________________ ___________________First man on the Moon – July 20, ____________ 

•         Six Apollo missions (1969-1972)

–        382 kg rocks  

•         ___________________ Americans have walked on the moon