Space Study Guide

Space is defined as:

• The physical universe beyond the earth's atmosphere

• A continuous area or expanse that is free, available, or unoccupied

• The dimensions of height, depth, and width within which all things exist and move

• All of the above

The term 'Universe' is defined as:

• The totality of known or supposed objects and phenomena throughout space.

• A small part of the solar system.

• Only the Milky Way galaxy.

• A fictional concept in literature.

A 'Galaxy' is defined as:

• a large system of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity

• a small cluster of stars

• a single star

• a planet

A Celestial Object is defined as:

• A natural object visible in the sky, such as a star, planet, moon, or asteroid.

• A man-made object launched into space, like a satellite.

• A type of weather phenomenon.

• A geological formation on Earth.

The Milky Way is defined as:

• a galaxy that contains our Solar System

• a type of candy bar

• a constellation in the night sky

• a planet in the Solar System

The Sun is a:

• planet

• star

• moon

• comet

A 'Planet' is defined as:

• A celestial body that orbits a star, is spherical, and has cleared its orbit of other debris.

• A star that emits light and heat.

• A natural satellite that orbits a planet.

• A comet that travels through the solar system.

How do you remember the order of the planets?

Define the term 'Star' as used in space terminology.

• A celestial body that produces light and heat from nuclear reactions at its core

• A planet that orbits around a star

• A natural satellite that orbits a planet

• A galaxy consisting of billions of stars

The term 'Moon' in space terminology is defined as:

• A natural satellite orbiting a planet

• A star at the center of a solar system

• A comet traveling through space

• A galaxy containing billions of stars