1. Why does the moon seem to change?
Day 3
Why does the moon seem to change?

2. Lesson Objectives The students will:
Make a model to show how the moon reflects sunlight.
Know that the moon orbits Earth and that the moon is visible when it reflects light from the sun.
Describe how light reflected from the moon looks a little different every day but looks the same again about every 29 days.

4. Which of the following is not a moon shape?
Concept Question:
Which of the following is not a moon shape?
Half Quarter Moon
Full Moon
Crescent Moon
Big Moon

5. The moon is a huge ball of rock that moves in an orbit around Earth.
The moon shapes you see
The moon is a huge ball of rock that moves in an orbit around Earth.

6. It takes nearly one month for the moon to orbit, or travel around Earth.

7. seems to shine brightly.
Sometimes, the moon
seems to shine brightly.

8. But the moon doesn’t give off light of its own light, as stars do.
It reflects light from the sun.

9. The moon is always orbiting Earth.
The part you can see of the moon’s lit side changes each night.

10. This makes it
seem as if the
moon’s shape
is changing.

11. The phases, or shapes you see, change as the moon moves.

12. First Quarter Moon Last Quarter Moon Crescent Moon
Full
Moon
First Quarter
Moon
Last Quarter
Moon
Crescent
Moon

14. Lets take a look at how the moon changes each night for a month
scroll down to Unit D: Weather and Space - Chapter 8 “phases of the moon” and click on that

16. The changes follow a pattern that repeats about 29 days.

17. Which of the following is not a moon shape?
Concept Question:
Which of the following is not a moon shape?
Half Quarter Moon
Full Moon
Crescent Moon
Big Moon

18. Lesson Objectives The students will:
Make a model to show how the moon reflects sunlight.
Know that the moon orbits Earth and that the moon is visible when it reflects light from the sun.
Describe how light reflected from the moon looks a little different every day but looks the same again about every 29 days.