1. Phases, Eclipses, and Tides
Section 19.3

2. Daily Question 1/6/15
In your daily question book write down at least three things you know about the moon. If you know more, please write them down as well.

3. Motions of the Moon The moon travels through space in two ways:
Revolving around Earth
Rotating on its axis
The changing relative positions of the moon, Earth, and sun cause the phases of the moon, eclipses and tides.

4. Moon Rotation Quarter/Penny Activity Page 670 in book
Complete the “Think it Over” with your partner. Put the answers in your daily question book.
One day = one year on the moon (period of rotation and period of revolution are the same)
Same side of the moon always faces the Earth

5. Daily Question 1/7/15
On the back desk is a worksheet and scissors. Please pick up the worksheet and a pair of scissors. Follow the directions on the worksheet. We will go over the correct answers before we glue them down.

6. Phases of the Moon
The moon’s light is the reflection of the sun’s light.
The different shapes of the moon you see from Earth are called Phases.
The phase of the moon that you see depends on how much of the sunlit side of the moon faces Earth.
(moon phase worksheet)

7. Daily Question 1/9/15 Do not use your notes!
What causes the phases of the moon?
What phase comes after first quarter?
What phase comes before new moon?
Review Question: Convert the follow and complete the math
3.697 km – 26,159 mm = __________m

8. When the moon’s shadow hits Earth or Earth’s shadow hits the moon, an eclipse occurs.
The partial or total blocking of one object in space by another is an eclipse.
~ Solar
~ Lunar
ECLIPSES

9. Solar Eclipse
A solar eclipse occurs when the moon passes directly between the Earth and the sun, blocking sunlight from Earth.
A new moon blocks your view of the sun.
Part of the sun is visible from Earth
Light is completely blocked

10. Lunar Eclipse
During a lunar eclipse, Earth blocks sunlight from reaching the moon.
Occurs during a full moon
Umbra = Total Eclipse
Penumbra = Partial Eclipse

11. Daily Question 1/13/15
Pick up the worksheet “Space Shadows” from the back desk. Complete that side. Do not use your notes.

12. Tides
The rise and fall of ocean water that occurs every hours is the tide.
Tides are caused mainly by the differences in how much the moon’s gravity pulls on different parts of the Earth.

13. Tides…
At any one point there are two places with high tides and two places with low tides on Earth.
High tides is facing the side of the Earth facing the moon and the exact opposite side.
Low tide is the two places between the high tides.

14. The sun and moon (1st and 3rd) are at right angles producing a tide with the least difference between consecutive low and high tides.
The combine gravitational forces of the sun and the moon (full and new) produce a tide with the greatest difference between consecutive low and high tides.