| A | B |
|---|
| rotation | the act of spinning; what Earth does every 24 hours on its axis |
| axis | Real or imaginary line that an object spins around |
| apparent motion | The way something appears to move. The sun really doesn't rise in the east, move across the sky and set in the west. |
| revolution | when an object travels around another; Earth's complete travel around the sun |
| orbit | The path an object takes as it revolves around an object |
| ellipse | A flattened circle or oval |
| crater | A hollow area or pit in the ground |
| sun's apparent path | the term used to describe the path the sun takes as it rises higher in the sky during a summer day and lower during a winter day |
| meteoroids | large rocks which made many of the Moon's craters |
| earth's atmosphere | keeps meteroids away because when they enter this they become hot and burn up before they hit earth's surface |
| phases | The apparent shapes of the Moon in the sky are called ______________ |
| Solar eclipse | When the Moon casts a shadow on the Earth it is called a _____________________ |
| lunar eclipse | when the Earth casts a shadow on the Moon it is called a ___________________ |
| waxing | going from a new moon to a full moon ( dark to light) |
| waning | going from a full moon to a new moon ( light to dark) |
| solar system | the sun and all the objects in orbit around it |
| planets | round objects in space that are satellites of the sun |
| Copernicus | discovered that planets orbit the sun - Not the earth! |
