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EARTH MOON AND SUN
ITS SPACE
| Question | Answer |
|---|---|
| Astronomy | the study of the moon, stars, and other objects in space |
| Axis | an imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates |
| Rotation | the spinning motion of a planet on its axis |
| Orbit | the path of an object as it revolves around another object in space |
| Solstice | the two days of the year on which the sun reached its greatest distance north or south of the equator |
| Equinox | the two days of the year on which neither hemisphere is tilted toward or away from the sun |
| Gravity | The force that pulls objects toward each other |
| Mass | A measure of how much matter is in an object |
| Weight | A measure of the force of gravity on an object |
| Inertia | an object’s tendency to resist change in motion |
| Newton’s First Law of Motion | the scientific law that states that an objects at rest will rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force |
| Law of Universal Gravitation | the scientific law that states that every object in the universe attracts every other object |
| Phase | The different shapes of the moon you see from Earth |
| Eclipse | When an obj. In space comes between the sun and a third obj. It casts a shadow on that obj. Causing an eclipse. |
| Solar Eclipse | When a new moon blocks your view of the sun. |
| Umbra | The very darkest part of the moon. |
| Penumbra | The larger part of the moon’s shadow. |
| Lunar Eclipse | Occurs at a full moon when Earth is directly between the moon and the sun. |
Created by:
Jeremy Lt