What is a celestial body moving in an elliptical orbit around a star?
a planet
Which word means the whole cosmic system of matter and energy of which Earth is a part?
universe
Which planet is the largest?
Jupiter
What is the 6th planet from the sun?
Saturn
Which planet is 141.6 million miles from the sun?
Mars
Which planet is made up of 2/3 water?
Earth
Which planet is Earth’s twin in size and mass?
Venus
Which planet has rings made of dust and ice?
Saturn
Which planet is closest to the sun?
Mercury
Name the 4 outer planets.
Jupiter, Saturn, Uranus, Neptune
How do planets move?
They orbit (revolve) clockwise around the sun.
What is the largest object in our solar system?
the Sun
Which 2 planets have no moons?
Mercury and Venus
Which 2 planets have the most moons?
Jupiter and Saturn
Which planet appears blue?
Neptune
Name the 4 inner planets.
Mercury, Venus, Earth, Mars
What is the force that governs all planetary movement in the solar system?
gravity
Which planet is the smallest?
Mercury
Which planet appears red?
Mars
What is a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction?
a galaxy
Which planet has a large red spot?
Jupiter
What is the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets called?
the solar system
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