Topic 11: Earth Sun Moon System

Front

An object that revolves around another object in space

Back

Satellite

Front

A ball of hot gas, primarily hydrogen and helium.

Back

Star

Front

A large body in space that orbits a star, does not produce light of its own, and is big enough to clear its orbit of debris.

Back

Planet

Front

A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.

Back

Meteor

Front

A ball of frozen dust and rock that orbits the sun and has a tail that glows

Back

Comet

Front

A group of stars that form a pattern in the sky

Back

Constellation

Front

A model of the universe in which Earth is at the center of the revolving planet and stars.

Back

Geocentric

Front

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

Back

Heliocentric

Front

An elongated circle, or oval shape, the shape of the planets orbit.

Back

Ellipse

Front

An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates

Back

Axis