Our Solar System

Journey through Our Solar System! Identify planets, moons, and space objects.

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Match each word to the best description. Sun An average sized star Earth The only planet with life Mars An inner planet that appears red Moon A natural satellite of Earth Asteroid belt Separates the inner planets from the outer planets A gaseous planet with rings Saturn The largest planet Jupiter The smallest planet Mercury Sort each planet into its category Inner Planets Mercury Earth Venus Mars Outer Planets Saturn Jupiter Uranus Neptune Match each space object to its description Meteor sometimes called a shooting star, these space objects can be seen as they pass through Earth's atmosphere Asteroid Smaller than a planet, these large rocky objects orbit the Sun Comet These icy balls have tails that glow when they near the Sun Meteorite Have survived the passage through the atmosphere. How many stars are in our solar system? One Too many to count Two FIve The solar system includes the Sun and all the objects that orbit around it due to its _ Force Light Gravity Heat Venus is known as Earth's sister planet. This is due to its similar location, diameter, mass, density, gravity, and composition. One difference though is its temperature. Venus can get up to 900 degrees f. This is due to its runaway greenhouse effect. Mars is very different from Earth. It is half the diameter of Earth. It has two moons called Phobos and Deimos. The atmospheric pressure is also less than 1% of Earth because the atmosphere is so thin. The asteroid belt is made up of solid, rock-like mass that revolves around the sun. It separates the inner and outer planets. It is leftover debris from the solar system formation. Past Neptune, there is the Kuiper belt that is 50AU from the sun. Even further there is the Oort Cloud that is made up of icy, comet-like bodies that surround the solar system. Both the Kuiper belt and the Oort cloud are sources for comets. Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices. When they burn up they produce large tails.