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How many planets are there in our solar system?
8
What are the names of the biggest and smallest planets in the solar system?
Jupiter is the biggest planet, Mercury is the smallest planet.
What are the names of the coldest and hottest planets in the solar system?
Uranus is the coldest planet, Venus is the hottest planet.
What do we call the path (the way) that planets follow around the Sun?
orbit
Compare Earth's orbit and Neptune's orbit
Earth's orbit is smaller than Neptune's orbit
How many days does it take for the Earth to orbit the Sun?
365 days (365.35 days)
Which planet is covered by volcanoes?
Venus
Name two gas giant planets
Jupiter and Saturn
Which planet is known as the Red Planet?
Jupiter
Which planet is closest to the Sun?
Mercury
