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The Planets. What is a planet?. A planet is a celestial body that orbits around the sun What does celestial mean? Celestial simply means space What does orbit mean? Orbit means to travel So what does that mean?
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What is a planet? • A planet is a celestial body that orbits around the sun • What does celestial mean? • Celestial simply means space • What does orbit mean? • Orbit means to travel • So what does that mean? • A planet is a large mass that is floating in space by gravity and moves in a circle around the sun
What are the planets? • There are eight planets in our Solar System: • Mercury • Venus • Earth • Mars • Jupiter • Saturn • Uranus • Neptune
Mercury • Mercury is the closest planet to the sun (36 million miles from the sun) • Eighth largest planet • There are craters on the surface of Mercury • Orbits around the sun in only 88 days • Mercury rotates very slowly, one day in Mercury is 58 Earth Days • Has no moons
Venus • Second Planet from the sun (67,237,910 miles from the sun) • Hottest and brightest of all planets • Sometimes call morning star • Same size as earth • Has craters and volcanoes on the surface • Takes about 225 days to orbit around the sun • Spins backwards • No moons or rings
Earth • Third planet from the Sun • Fifth largest planet • Takes about 365 days (1 year) to orbit around the Sun • The surface of Earth is 70% water and plate tectonics • Earth has one Moon (click her for information about the Moon)
Mars • Fourth Planet from the Sun • Called the Red Planet because of it’s red color • A day on Mars is a little over 24 hours (only a little longer than a day on Earth) • A year on Mars is 687 days (almost double an Earth year) • Mars has two moons Phobos and Diemos • There are craters, volcanoes, and dust storms on Mars
Jupiter • Fifth planet from the Sun • Largest planet in the Solar System • Takes 12 Earth years to orbit the Sun • 483,780,000 miles from the Sun • Jupiter has 60 Moons • Jupiter has rings • Jupiter is made up of mostly gas unlike the other planets
Saturn • Sixth Planet from the Sun • Second largest planet • 941,070,000 miles from the Sun • Takes 29 Earth years to orbit the sun • Has 31 moons • Saturn has rings which are made up of thousands of ice particles the size of a small car
Uranus • Seventh planet from the sun • Icy planet (blue in color) • Faint rings • Rotates on its side (one pole is facing the Sun so seasons on Uranus last 20 years) • takes about 84 Earth years to orbit the Sun • Has 16 moons • 178,486,000 miles from the Sun
Neptune • Eighth planet in the solar system • Blue in color with faint rings • Made up of gas • Has 13 moons • Takes about 164 Earth years to orbit the Sun • 2,793,100,000 miles from the Sun • The largest moon Triton orbits backwards around Neptune
Time to take a Quiz! Click on the answer that you think is correct. Don’t worry if you get it wrong you can always try again! Good Luck!
Which planet is fourth from the sun? • 1. Jupiter • 2. Venus • 3. Mars • 4. Earth
Which planet has 13 moons? • 1. Neptune • 2. Uranus • 3. Jupiter • 4. Earth
Which planet is closest to the sun? • 1.Venus • 2. Mars • 3. Saturn • 4. Mercury
Which planet takes 12 Earth Years to orbit the Sun? • 1. Venus • 2. Mercury • 3. Jupiter • 4. Mars
Which is the second largest Planet? • 1. Venus • 2. Saturn • 3. Mars • 4. Uranus
Which Planet rotates on its side? • 1. Jupiter • 2. Saturn • 3. Uranus • 4. Mercury
Which planet is the hottest of all Planets? • 1. Mercury • 2. Neptune • 3. Uranus • 4. Venus
Which planet is the largest planet in our Solar System? • 1. Saturn • 2. Earth • 3. Neptune • 4. Jupiter
Which planet is third from the sun? • 1. Neptune • 2. Earth • 3. Uranus • 4. Mars
This is the only object in Space Humans have visited • 1. Mars • 2. Earth’s Moon • 3. Venus • 4. Mercury
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