Solar System

Jupiter is made up mostly of

• Hydrogen and Helium

• Rock

• Iron

• Water

The force of attraction between all objects in the universe is

• Nebula

• Perihelion

• Maria

• Gravity

A light year is

• The distance light travels in one year

• The distance Earth moves in one year

• The time it takes light to go once around the Earth’s orbit

• The time it takes light to travel in 1 year

Billions of stars on the same region of the universe are called

• Solar Systems

• Galaxies

• Asteroid Belts

• Constellations

What separates the Inner Planets from the Outer Planets?

• Pluto

• The moon Titan

• Asteroid Belt

• Sun

Which planet has the fastest rotation?

• Jupiter

• Venus

• Earth

• Mercury

Which planet’s day is longer than its year?

• Mercury

• Jupiter

• Venus

• Uranus

What is the correct order of the inner planets?

• Mercury, Venus, Mars, Earth

• Mars, Venus, Earth, Mercury

• Earth, Mars, Mercury, Venus

• Mercury, Venus, Earth, Mars

Which planets are gaseous?

• Inner planets

• Outer planets

Which planets have crusts?

• Inner planets

• Outer planets