Astronomy Vocabulary

A _______ model of the universe has Earth at the center of the revolving planets.

• Geocentric

• Heliocentric

• Ptolemaic

• Copernican

Fill in the blank: A _______ model of the universe has the Sun at the center of the Earth and the other planets.

• Heliocentric

• Geocentric

• Ptolemaic

• Tychonic

A _______ is a loose collection of ice and dust that orbits the sun.

• Comet

• Asteroid

• Meteor

• Planet

Fill in the blank: An _______ is a rocky object revolving around the sun, too small to be considered a planet.

• Asteroid

• Comet

• Meteor

• Planet

A _______ is a chunk of rock or dust in space, smaller than an asteroid.

• Meteoroid

• Asteroid

• Comet

• Planet

Fill in the blank: A _______ is a streak of light in the sky from a burning meteoroid in Earth’s atmosphere.

• Meteor

• Comet

• Asteroid

• Star

Fill in the blank: A _______ is a meteoroid that hits Earth’s surface.

• Meteorite

• Asteroid

• Comet

• Meteor

Fill in the blank: A _______ is an object that orbits another object in space.

• Satellite

• Planet

• Asteroid

• Comet

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A _______ is a spacecraft with scientific instruments to collect data, but no humans.

• Space Probe

• Satellite

• Rover

• Space Shuttle

A _______ is a reusable spacecraft that carries a crew into space.

• Space Shuttle

• Rocket

• Satellite

• Space Station