1. Our Earth, Sun, and Moon

2. The path an object takes as it travels around another object.
orbit

3. A body that has the shape of a ball or globe.
sphere

4. In the process of getting larger.
waxing

5. In the process of getting smaller.
waning

6. To turn.
rotate

7. A temporary state of being.
phase

8. To move around another object in a circular way.
revolve

9. A real or imaginary line through the center of a spinning object.
axis

10. The full sequence of the Moon’s phases.
lunar cycle

11. A period of time when the Moon moves into Earth’s shadow.
lunar eclipse

12. The imaginary line that divides Earth into the northern and southern hemispheres.
equator

13. The moon revolves around the Earth.
It takes the moon about 4 weeks to orbit Earth.

14. Moon’s Phases
The lunar cycle takes 4 weeks.

15. Lunar Eclipse
When the Earth’s shadow falls on the Moon it is called a lunar eclipse.

16. Seasons
Seasons on Earth are caused by Earth’s revolution around the Sun and Earth’s tilt as it makes its orbit.