Planets in Our Solar System Inner Planets Mercury

Planets in Our Solar System

Inner Planets ● Mercury, Venus, Earth, Mars ● Solid surface ● 1 st 4 planets from the Sun Outer Planets ● Jupiter, Saturn, Uranus, Neptune ● Made of gas ● Have rings Dwarf Planets ● Pluto, Eris, Ceres ● Smaller than other planets

The Sun ● Average size star ● Made of hydrogen gas ● Has the most gravity in our solar system ● All objects in our solar system revolve around the sun ● Contains 99% of all matter in the solar system

Mercury ● Rotation Time - 59 days ● Revolution Time - 88 days ● No atmosphere ● No moons ● Covered with craters

Venus ● Rotation Time - 243 days ● Revolution Time - 225 days ● Similar in size to Earth ● No moons ● Hottest planet because of thick layer of carbon dioxide gas in atmosphere

Earth ● Rotation Time - 24 hours ● Revolution Time - 365 days ● 1 moon ● Only planet with liquid water ● Atmosphere 78% nitrogen, 21% oxygen

Mars ● Rotation Time - 24 hours and 40 minutes ● Revolution Time - 687 days ● Known as the Red Planet because of rust in the soil ● Only planet NASA has landed rovers (robotic cars)

Jupiter ● Rotation Time - 9 hours and 55 minutes ● Revolution Time - 11. 9 years ● 50 moons ● Largest planet ● Made of gas ● Has rings but they are hard to see ● Great Red Spot - giant hurricane like storm on the surface

Saturn ● Rotation Time - 10 hours and 40 minutes ● Revolution Time - 29. 5 years ● 53 moons ● Most known for its rings - 7 different rings made of rocks and ice (not solid rings) ● Would float in water (made of gas so it is lighter than Earth)

Uranus ● Rotation Time - 17. 3 hours ● Revolution Time - 84 years ● 27 moons ● Bluish-green color ● Rotates on its side ● Has rings

Neptune ● Rotation Time - 16 hours ● Revolution Time - 165 years ● 13 moons ● Dark blue color because of methane gas in atmosphere ● Has rings ● Very fast winds ● Similar in size to Uranus

https: //kidsastronomy. com/solar-system/ Planet video NASA explore the solar system Planet Game