Space Unit Test Review

A large celestial body that is composed of gas and emits light is a(n) ____________

• nebula

• light year

• galaxy

• star

A(n) ____________________ consists of one star of more than one star and all of the objects in orbit around the central star.

• star

• solar system

• galaxy

• nebula

A(n) _______________ is a large group of stars, gas, and dust bound together by gravity

• nebula

• galaxy

• solar system

• star

A large, cold cloud of gas and dust in interstellar space is called a ___________________

• star

• solar system

• galaxy

• nebula

The distance that light can travel in one year, also known as a(n) __________________________, is about 9.5 trillion km.

• neblula

• light year

• galaxy

• solar system

_____________________ is the process in which energy is released as the nuclei of small atoms combine to form a large nucleus

• parallax

• nuclear fusion

• asteroid

• solar nebula

The solar system formed from a ______________________, which is a rotation cloud of gas and dust that formed in the sun and the planets

• solar nebula

• asteroid

• fusion

• parallax

When an object looks as if the position has shifted when it is viewed from different locations, this is referred to as ________________________.

• parallax

• fusion

• asteroid

• solar nebula

Earth, Venus, Earth, Mars, and Mercury are considered ______________ which are highly dense planets nearest the sun.

• dwarf planets

• terrestrial planets

• gas giants

• asteroids

A(n) _____________________ is a small, rocky object that orbits the sun; many of these objects are located in a band between the orbits of Mars and Jupiter

• parallax

• fusion

• terrestrial planet

• asteroid