Planets and Stars

Which planet is represented by number 3 in the solar system?

• Mercury

• Mars

• Venus

• Earth

The inner planets are made of:

• gases

• rubber

• rocky material or terrestrial

• hydrogen

The Sun is a ________, a huge ball of glowing gas.

• planet

• asteroid

• star

• comet

The inner planets are __________ than the outer planets because they are closer to the Sun.

• hotter

• colder

The Sun appears to be the largest and brightest star in our galaxy because _________.

• It is the largest and brightest star.

• It is billions of light-years away.

• It is the closest star to us.

• The Sun is not a star, it is a planet.

____________ is the only planet that can sustain life; however, some scientists believe that Mars might also be able to sustain life.

• Mercury

• Saturn

• Uranus

• Earth

____________ is unique because it is tilted on its side.

• Uranus

• Mercury

• Saturn

• Earth

The planets __________ the Sun in their orbits.

• rotate

• revolve

• flip

• twist

Large objects that are made of gas or rock are called

• asteroids

• comets

• stars

• planets

The group of inner planets is known as:

• The Terrestrial Planets

• The Gas Giants

• The Outer Planets

• The Hallow Planets