Solar system 4th grade january 2008
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Solar system 4th grade january 2008






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Solar system 4th grade january 2008 Solar system 4th grade january 2008 Presentation Transcript

  • Spaceman Joe’s Cool Adventures Learning How Our Solar System Works!
  • What is revolution and rotation?
    • Revolution is the movement of a planet in an orbit around the sun.
    • Rotation is the turning of a planet on its axis, which causes day and night.
  • Rotation of the Earth
  • How Long is a Day on Each Planet? (Rotation) Mercury – 59 Days Venus- 243 Days Earth- 24 Hours Mars- 24 ½ Hours Jupiter- 10 Hours Saturn- 11 Hours Uranus- 17 Hours Neptune- 16 Hours
  • Revolution of the Earth
  • How Long is a Year on Each Planet?(Revolution) Mercury-88 Days Venus- 225 Days Earth-365 ¼ Days Mars- 687 Days Jupiter- 12 Years Saturn- 30 Years Uranus – 84 Years Neptune – 165 Years
  • What causes the Earth to have Seasons?
    • The earth is tilted on its axis.
    • If part of the earth is tilted towards the sun, then we would have summer.
    • When we are tilted away from the sun, we would have winter.
    • The tilt of the earth never changes!!
  • Phases of the Moon
  • Phases of the Moon
    • We see the moon because sunlight is reflected off the moon’s surface.
    • It takes the moon 29 ½ days to complete the phase cycle.
  • New Moon Waxing Crescent Moon First Quarter Moon . Waxing Gibbous Moon Full Moon                                                                                                                               
  • Waning Gibbous Last Quarter Waning Crescent                                                                                                
  • Let’s Review!
  • Our Solar System
  • Our Star, The Sun
  • Characteristics of the Sun
    • Average size yellow star made of hydrogen gas.
    • Source of heat and light for all of the solar system.
    • The age of the sun is about 5 billion years old.
  • Sunspots
  • And now there are eight !
  • 2003 UB313 is now known as Eris
  • Planets in our Solar System
    • There are eight planets in our solar system.
    • There are 3 dwarf planets.
    • Planets can be broken down into 2 types: Inner and Outer. The inner planets include: Mercury, Venus, Earth and Mars. The outer planets include: Jupiter, Saturn, Uranus, Neptune.
  • Mercury —closest planet to the sun. No atmosphere so very hot or very cold. Has craters and travels faster than any other planet. It only takes Mercury 88 days to make one revolution.
  • Venus
    • hottest planet in solar system.
    • Rains sulfuric acid.
    • Atmosphere made of carbon dioxide.
    • One day on Venus is longer than its year!
  • Earth
    • only planet with liquid water
    • and life.
    • Has weather and clouds
    • Has active volcanoes.
  • Mars-- largest volcano in the solar system Olympus Mons and may have had water in the past. Has the deepest valleys in the solar system. Has polar ice caps. Has 2 moons.
  • Asteroid Belt
    • Pieces of rock ranging in size from the grain of sand to miles across.
  • Jupiter
    • Largest planet with the most moons. Giant red spot which is a storm. Has 63 moons and one day is 10 earth hours long.
  • Saturn
    • 2nd largest planet with rings.
    • Rings are made up of rock, ice and dust.
    • Has 50 moons.
    • Would float on water
  • Uranus
    • planet that is tilted on its side with sideways rings.
    • Its North Pole faces the sun.
    • Has 27 moons.
    • Its year is 84 earth years long.
  • Neptune
    • Blue planet with a dark spot which is also a storm.
    • Neptune’s winds are the strongest in the solar system (2000 km/hour)
    • It has 13 moons.
  • Dwarf Planets
    • Pluto
    • Asteroid Ceres
    • 2003 UB313 (Eris)
  • Pluto
    • Small and Cold.
    • Smaller than the earth’s moon.
    • Has three moons.
    • One year on Pluto is 248 earth years long.
  • 2003UB313 (Eris)and its Moon
  • Asteroid Ceres