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Moon Phases and Eclipses

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by

Felicia Nip

on 31 May 2016

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Transcript of Moon Phases and Eclipses

Solar Eclipses
-Often associated with bad omens
- The moon passes between the sun and earth & fully/partially blocks the sun
Phase 7: Third Quarter
Moon Phases and Eclipses
Introduction to the Moon
- The moon doesn't always face the earth
- The surface of the moon has a pattern (phases)
- there are 8 phases:

1. new moon
2. waxing crescent
3. first quarter
4. waxing gibbous

Phase 1: New Moon
- Occurs when moon is between the earth and sun
- Illuminated side faces the sun
Phase 2: Waxing Crescent
- moon isn't positioned between sun and earth anymore
- Is seen in the west after sunset
- Also called half moon
- left half illuminated and right half in its shadows
- looks like the moon is facing downwards
Phase 4: Waxing Gibbous
- Rises between noon & sunset
Phase 6:Waning Gibbous
- moon is moving closer to the sun
- The illuminated side is turning away from Earth
By: Christine Cheung & Felicia Nip
- Waning is seen in the east before dawn
- Moves eastward around Earth (in orbit motion)
Eclipses
Phase 8: Waning Crescent
- A darkening of a celestial object due to the position of another celestial object
Two main types of eclipses: solar & lunar
Phase 3:First Quarter
- Also called half moon


-4 Types: total, annular, hybrid & partial
Parts of an Eclipse
-3 parts of an eclipse:
-Umbra
-Penumbra
-Antumbra

Umbra: darkest part of a shadow that is cast by either the sun, earth or any other objects during an eclipse
Phase 5: Full Moon
Penumbra: partially shaded outer region by the sun, earth, or any other objects
- Opposite of the new moon
Antumbra: the part of the shadow that's casted by the light from the sun
Lunar Eclipses
-Occurs when the earth is positioned between the Sun and Moon
- Illuminated side of the moon starts to deplete
THANK YOU :)
- Makes the moon look orange/red
- Three types: total, partial & penumbral lunar eclipses
- It's rare & can only be seen during new moon
Fun Facts
- The moon's diameter is about 1/4 of the earth's diameter
- The moon does not have a global magnetic field
- When we are on Earth, we always see the exact same side while the other one is in the shadows
- The moon rotates at 10 miles per hour
-can only see the shadow of the moon
- First quarter rises at noon, and sets near midnight.
-Comes a week after new moon
- Shows half illuminated and half in shadows
-Sets at midnight
-Easier to see than a waxing crescent
-Most of the illuminated side faces Earth
-Entire illuminated side faces Earth
References
- www.timeanddate.com/eclipse/eclipse-information.html
- www.earthsky.org/moon-phases
- http://www.moonconnection.com/moon_facts.phtml
- Science Perspective 9 Textbook
- www.mreclipse.com/Special/SEprimer/html
Activity: Crossword
-Get into groups of two
-complete the crossword together as fast as you can
-first 3 groups to win will get a prize! :D
THE ANSWERS MUST BE CORRECT
- can be seen anywhere on Earth where the moon is above the horizon
- Can be seen about 2 weeks into the cycle
5. full moon
6. waning gibbous
7. third quarter
8. waning crescent
-extremely close to the sun
Full transcript