Unit 10 vocabulary

Front

Moon

Back

A celestial body that revolves around a planet.

Front

Comet

Back

A celestial body of ice, dust, and rock with an elongated and elliptical orbit.

Front

Asteroid

Back

Large and small rocks or metallic masses orbiting the Sun; made up of materials similar to those that formed the planets.

Front

Orbit

Back

A curved path followed by a satellite as it revolves around an object.

Front

Gravitational Pull

Back

The attraction between two objects due to the invisible force of gravity.

Front

Meteor

Back

A small object that enters Earth's atmosphere from space and burns due to friction, emitting light.

Front

Meteoroid

Back

A chunk of material smaller than an asteroid that orbits the sun.

Front

Moon Phases

Back

The Moon's repeated pattern of changes in appearance due to its position relative to Earth and the Sun.

Front

Eclipse

Back

An obscuring of the light from a celestial body by the passage of an object between the celestial body and the observer.

Front

Tide

Back

The rise and fall of the level of the sea in response to the pull of the Moon's gravity.