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Our Solar System
Created by Tina Maloy
Our Solar System
• A Solar System is a group of objects in space that move around a central star.
• It contains:• The sun• Nine Planets• Moons• Asteroids• Comets
The Sun
•Our Sun is a star.
•Each planet revolves around the sun and rotates on its own axis.
• The sun is a burning sphere of gas.
•The time it takes a planet to orbit around the sun is called a year.
The PlanetsThere are nine planets in our Solar System.
• Inner Planets• Lie between the Sun and
the asteroid belt• Mercury• Venus• Earth• Mars• Rocky and Dense
Planets.
• Outer Planets• On the other side of the
asteroid belt• Jupiter• Saturn• Uranus• Neptune• Pluto• Gas Giants
Inner Planets
Mercury
• The planet closest to the sun
• It does not have an atmosphere
• Covered with craters• Looks like the moon
Venus
• The second planet from the sun
• Same size as the Earth• Dry with a thick
atmosphere that traps heat. (887F)
• Rotation of axis opposite of the Earth
Earth
• Third planet from the sun
• Largest of the inner planets
• Only planet that has liquid water and supports life
MarsThe Red Planet
• Fourth Planet from the sun
• Two Moons• A large volcano
“Olympus Mons”• Has no life
Outer Planets
Jupiter
• Largest Planet in our solar system
• It has a thin ring around it.
• 16 moons• A Great Red Spot
which is really a giant storm
• Mostly made of gas
Jupiter’s moon Io
Giant Red Spot
Saturn
• Well known for its rings
• Rings are so bright and wide they can be seen from Earth with a small telescope
• 18 named moons
Rings of Saturn
Uranus
• 7th Planet from the sun
• blue green ball of gas and liquid
• It has at least 21 moons
• A faint ring around it
Neptune
• The farthest away of the gas giants
• It has at least 8 moons• It has a faint ring
around it
Pluto
• The farthest from the sun
• Smallest planet• Has a rocky surface • Very little light or heat• Its moon is Charon
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