| A | B |
|---|
| rotation | spinning around an axis |
| revolution | moving around another object |
| day | time it takes to rotate once |
| year | time to revolve once |
| terrestrial | earth-like, rocky, small, interior |
| jovian | jupiter-like, gaseous, big, exterior |
| galaxy | group of billions of stars, planets and moons |
| solar system | one star and the objects that orbit it |
| orbit | path a planet follows to revolve |
| Earth | third planet from the sun |
| Astronomical Unit | distance from earth to the sun |
| cause of moon phases | the arrangement of the earth, moon and sun |
| cause of tides | gravitational pull of moon |
| reasons for the seasons | tilted axis & revolution |
| not a reason for seasons | distance from the sun |
| month or 29 days | time for the moon to go through phases |
| Why we see the same face of the moon | rotation & revolution are the same |
| 12 hours | time spent in daylight on equinox or at the equator |
