THE SUN The sun is about 900,000 miles wide The sun is mostly mad of about 24% helium and 74% hydrogen The solar system revolves around the sun. The sun is a hot ball of glowing gases INNER PLANETS 1. Mercyry 2. Venus 3. Earth 4. Mars The inner planets are the planets that are closets to the sun. Composed mainly of rock. OUTER PLANETS The outer planets consist of: 1. Jupiter 2. Neptune 3. Uranus 4. Saturn Jupiter is the largest planet in the solar system. These planets consist of mostly frozen gas. ACTVITY Draw the solar system in the correct sequence and give me one detail of each planet.