Unit 4 Vocab

5. Movement of Earth around its axis. This takes 24 hours and causes day and night.
7. The components that make up a whole object; what something is made of.
10. The force that causes objects with mass to attract one another
11. The study of the moon, stars, and other objects in space.
12. Occur when the Sun, Earth, and Moon are at a 90-degree angle, they happen twice in the Moons revolution, and they result in the lowest high tides.
13. Occur when the Sun, Earth, and Moon are in line, they happen twice in the Moons revolution, and they result in the highest high tides.
15. Scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion unless acted upon by a force.
16. Movement of Earth around the sun. This takes a year and causes seasons.
17. All objects in the universe attract each other through gravitational force. The size of the force depends on the masses of the objects and the distance between them.
18. Objects such as planets, moons, and stars that are located in the sky or in space.
19. The path of an object as it revolves around another object in space.

1. A small rocky body orbiting the sun
2. The blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon.
3. An imaginary line about which a body rotates
4. The two days of the year on which neither hemisphere is tilted toward or away from the sun.
6. The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
8. The two days of the year on which the sun reaches its greatest distance north or south of the equator.
9. The practice of turning the clock ahead as warmer weather approaches and back as
14. A meteoroid that passes through the atmosphere and hits Earth's surface.