| A | B |
|---|
| moon | a natural object in space that revolves around a planet |
| crater | a bowl shaped hole on the surface of the Moon |
| observatory | a place to view the sky |
| telescope | a tool used to view far away objects |
| Neil Armstrong | First American Astronaut on the Moon |
| phase | The way the Moon looks to you. |
| Astronomer | A scientist who studies the sky |
| Galileo | One of the first Astronomers to study the Moon |
| 1969 | The year Neil Armstrong and Edwin Aldrin landed on the Moon. |
| gravity | a force that pulls any two objects together |
| full moon | when we see a round circle of the moon |
| half moon | when we see a half of a circle of the moon |
| quarter moon | when we see a half of a circle |
| crescent moon | when we see a sliver of a circle |
| gibbous moon | when we see 3/4 of the circle of the moon |
| new moon | when we cannot see any of the moon |
| waning moon | when the moon seems to be getting smaller |
| waxing moon | when the moon seems to be getting bigger |
