1. QUIZ

2. Science Starter Pull out any late signed progress reports
Answer the following in your binder in the science starter section:
What are two differences between precession and nutation?

3. Every night this week, you will draw the moon
HOMEWORK
Every night this week, you will draw the moon
Draw the moon tonight! Label the phase

4. During Class
Label the phases of the moon and then answer the accompanying questions

5. Why does the moon change shape?

6. Where do you think it came from?
ORIGIN OF THE MOON
What is the moon?
Where do you think it came from?

7. ORIGIN OF THE MOON There are 5 theories on where the moon came from:
Fission Theory – moon was once part of earth and somehow was separated
Capture Theory – moon was formed somewhere else and captured by Earth’s gravitation
Condensation Theory – moon and Earth condensed together from the original nebula that formed our solar system

8. ORIGIN OF THE MOON
Colliding Planetesimals Theory – moon condensed from debris from colliding planetsimals (very large chunks of rock like asteroids)
Ejected Ring Theory – planestesimal the size of Mars struck Earth, ejecting large volumes of matter that eventually formed the moon

9. GUESS How old is the moon? How big is the moon in comparison to Earth?
How much gravity is there on the moon?

10. ANSWERS The moon is 4.6 billion years old (about the same as Earth)
The mass is about 1/80 that of Earth
Surface gravity of the moon is 1/6 that of Earth

11. MORE ABOUT THE MOON Orbits Earth at an average speed of 2,300 mph
Rocks and soil brought back by Apollo missions are extremely dry – no indigenous water
No atmosphere – surface bakes in sun at up to 243°F for 2 weeks at a time while the dark side cools to -272°F

12. BRAINSTORM What are ocean tides?
What is the difference between high and low tide?
How many are there per day?

13. TIDES AND THE MOON
Moon's gravitational pull on Earth is main cause of ocean tides
Causes two bulges of water on Earth's surface  high tides
As Earth rotates, bulges move around it, one facing the moon, the other directly opposite.
Two high tides and two low tides each day

14. BRAINSTORM What do you notice about the shape of the moon?
Does it change over time? How?
How often do you see a full moon?

15. PHASES OF THE MOON
Shape of the moon appears to change in a repeating cycle (~ 1 month) because the amount of illuminated moon we see depends on the moon's position in relation to the Earth and the sun

16. PHASE VOCABULARY New moon = completely dark
Waxing = Amount of light is increasing
Light on the RIGHT = waxing

17. Waning = amount of light is decreasing
PHASE VOCABULAR
Waning = amount of light is decreasing
Light on the LEFT = waning

18. PHASE VOCABULARY Crescent = when over half the moon is in shadow
Gibbous phase = when over half the moon is lit
Waning Gibbous 

19. Those are the same stars, and that is the same moon, that look down upon your brothers and sisters …”
Sojourner
Truth
NEW MOON
The light from the sun is hitting the side of the moon facing away from the Earth.
SUN
EARTH

20. and your feet on the ground.
Keep your
eyes
on the stars,
and your feet on the ground.
 - Theodore Roosevelt
FIRST QUARTER MOON
Approximately one week later, we see half of the lighted side of the moon. This is called a first quarter moon.
SUN
EARTH

21. All the ideas are there to be yours because everyone else is asleep.
Night time is
really the best time
to work. 
All the ideas are there to be yours because everyone else is asleep. 
-Catherine O'Hara
FULL MOON
Two weeks after the new moon, a full moon appears. The entire lighted side of the moon is facing earth.
SUN
EARTH

22. Moonlight is sculpture.
THIRD QUARTER MOON
Moonlight is sculpture. 
- Nathaniel Hawthorne
Three weeks after the new moon, a third quarter moon appears. We surface of the moon from earth. can see half of the lighted
SUN
EARTH

23. Partner Work
Your space ship has just crash landed on the moon. You will have to go out into the moon’s atmosphere to set up camp. What will you take with you?
Don’t write on sheet. Draw table on a separate piece of paper