Characteristics of the Universe VOCABULARY

Fill in the blank: _______ is all of space and the matter it contains.

• Universe

• Galaxy

• Solar System

• Planet

A _______ is a huge object in space made up of gas and giving off light and heat from nuclear reactions.

• Star

• Planet

• Comet

• Asteroid

Fill in the blank: The _______ is the star around which the planets and other objects in the Milky Way Galaxy revolve.

• Sun

• Moon

• Earth

• Mars

A _______ is a large cloud of gas and dust in space where stars form.

• Nebula

• Galaxy

• Asteroid

• Comet

A _______ is a large grouping of stars in space.

• Galaxy

• Planet

• Asteroid

• Comet

A _______ is a galaxy with a bulge in the center and distinctive spiral arms.

• Spiral galaxy

• Elliptical galaxy

• Irregular galaxy

• Lenticular galaxy

Fill in the blank: An _______ is a galaxy with an irregular shape.

• Irregular galaxy

• Spiral galaxy

• Elliptical galaxy

• Lenticular galaxy

Fill in the blank: An _______ is a spherical or elongated-shaped galaxy.

• Elliptical galaxy

• Spiral galaxy

• Irregular galaxy

• Lenticular galaxy

Fill in the blank: The _______ is the name of the galaxy in which we live.

• Milky Way Galaxy

• Andromeda Galaxy

• Triangulum Galaxy

• Whirlpool Galaxy

A _______ is a natural satellite of a planet.

• Moon

• Star

• Comet

• Asteroid