Moon
Space Rocks
Space
100

solar eclipse

Moon passes between the Earth and the Sun, casting a shadow on the Earth; Sun is blocked from view

100

shooting star

Small, rapidly moving meteor burning up on entering the earth's atmosphere.

100

geocentric

A model of the solar system in which Earth is at the center and the Sun, Moon, and other planets revolve around it

200

lunar eclipse

The moon moves into the Earth's shadow, blocking the moon from view.

200

meteorite

A meteoroid that passes through the atmosphere and hits the Earth's surface.

200

Venus

Planet 2nd from Sun and hottest planet due to thick atmosphere.

300

moon phases

The changing appearances of the moon as seen from Earth.

300

comet

Mostly ice and dust with a tail that orbits the sun.

300

heliocentric

A model of the solar system in which Earth and the other planets revolve around the sun

400

new moon

Moon phase when the moon is between Earth and sun. Moon cannot be seen because its lighted half is facing the Sun and its dark side faces Earth.

400

meteoroid

A chunk of rock or dust in space. Smallest space rock

400

galaxy

Collection of stars, dust, and gas bound together by gravity. Classified by their shape- 3 types: spiral, irregular, elliptical

500

full moon

Earth is between the Sun and the Moon, and all of the sunlit part of the Moon can be seen from Earth.

500

meteor

A meteoroid that is burning up in Earth's atmosphere. Also called a shooting star.

500

gravity

Force of attraction between objects that is due to their masses. As mass increases so does the gravitational force. Keeps planets orbiting the Sun.