What makes up a galaxy?

• stars, gas, dust

• group of stars that make a pattern

• a star and the planets orbiting the stars

What is Earth's home galaxy?

• Solar System

• Scientists don't know

• Milky Way

What do all planets have in common?

• all have rings

• all have an atmosphere

• all are cold

Which of the outer planets is closest to the sun?

• Jupiter

• Neptune

• Mercury

• Venus

Which of the inner planets is closest to the sun?

• Mercury

• Neptune

• Earth

• Jupiter

Which outer planet is closest to Earth?

• Mars

• Mercruy

• Saturn

• Uranus

Which is a characteristic of inner planets?

• inner planets are rocky

• inner planets are made of gas

• inner planets are larger

• inner planets have rings

What is a characteristic of outer planets?

• outer planets are rocky

• outer planets are smaller

• outer planets are made of gas

• outer planets have few moons

What is a characteristic of inner planets?

• inner planets are made of rock and are cold

• inner planets are made of gas and are warm

• inner planets are large and cold

• inner planets are small and warm

What is a characteristic of all planets?

• they all revolve around the sun

• they all have moons

• they all are made of gas

• they are all made of rocks