Which planet is the jewel of the sky?
Uranus
Venus
Mars
Jupiter
Which planet rotates on its side?
Neptune
Which is the closest star to Earth?
Sun
Mercury
What speed is needed for a gas molecule to escape from planet?
Orbital speed
Solar wind speed
Speed of light
Escape velocity
Which planet besides the Earth has evidence of erosion by running water?
Which is our home planet?
Earth
What are made of solid materials?
Planets
Satellites
Stars
Comets
Which planet is known as the Earth's twin?
Which is the largest planet in the solar system?
