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Astronomy

The study is the moon, stars, and other objects in space

2 ways earth move through space

Rotation and revolution

Axis

The imaginary line that passes through Earth's center and the north and south poles

rotation

The spinning of earth in its Axis

Revolution

The movement of one object around another

Orbit

the path that earth follows

Earth has seasons because

its axis is tilted as it revolves around the sun

Solstice

When the sun reaches its greatest distance north or south of the Equator

Equinox

Niether hemisphere is tilted toward or away from the sun. (Equal day,equal night)

Force

A push or pull

gravity

attracts all objects toward each other

law of universal gravitation

states that every object in the universe attracts every other object

Mass

the amount of matter in an object

Weight

the force of gravity against an object

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