| A | B |
|---|
| spring tides | occur during new and full moons |
| sprint tides | high tides |
| neap tides | occur during quarter moons |
| neap tides | weak tides |
| moon phases | different portions of the lighted moons |
| waxing | growing larger in size |
| waning | getting smaller in size |
| craters | depressions |
| maria | dark spots on moon from lava flow |
| rotation | spinning on axix |
| revolution | curved path taken around sun |
| gravity | force attracting objects toward each other |
| orbit | curved path |
| Northern Hemisphere | where we live |
| solsitce | when sun reaches its greatest distance north or south of equator |
| equinox | directly above earth's equator |
| Summer solstice | occurs June 21 or June 22 |
| Winter solstice | occurs December 21 or December 22 |
| comet | made of ice and dust |
| asteroid | small rocky objects between inner and outer planets |
