Science 6th All Of 2nd Semester
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Science 6th All Of 2nd Semester Science 6th All Of 2nd Semester Presentation Transcript

  • SPACE Chapter 4 6 th Grade Science
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  • 4.6 Exploring the Solar System
    • The sun is the center of our solar system
    • The solar system is made up of the sun and all the heavenly bodies that orbit it.
    • We have eight planets in our solar system
  • Inner Planets
    • Mercury, Venus, Earth, and Mars
    • These are made mainly of rocks and metals.
  • Outer Planets
    • Jupiter, Saturn, Uranus, and Neptune.
    • Made of mainly gases, liquids, or ice.
  • Moons
    • Earth has one moon.
    • Venus and Mercury are the only two planets that have NO moons.
  • 4.7 Our Earth
    • The earth REVOLVES around the sun.
    • One revolution (trip around the sun) takes earth 365 ¼ days.
    • This is called a “solar year”
  • Rotation page 280
    • A rotation is the earth’s spinning on its axis.
    • One rotation is completed in about 24 hours.
  • Atmospheric Filter
    • Our atmosphere acts like a filter to keep earth a place where humans can live.
    • The atmosphere is a blanket of air.
    • It protects us from the sun’s harmful UV rays
    • It also keeps earth warm because of the “green house effect.” This is when the heat is trapped on earth because of the atmosphere.
  • 4.8 The Mysterious Moon
    • The moon is a natural satellite orbiting the earth.
    • It’s surface is covered with craters (holes) that make it look like a sponge.
    • The moon affects the tides of the oceans on earth.
    • There are 8 phases of the moon.
  • 4.9 Smaller Space Travelers
    • Asteroids are tiny worlds traveling around the sun.
    • They range in size from a few 100 miles to a small house!
    • Asteroids are usually spherical shape (like earth)
    • Made up of metals and rocks
  • Comets: Icy travelers
    • Comets are the size of asteroids
    • They have a bright tail when the come near the sun
    • It is made of frozen rock, dust, and ice. It begins to melt near the sun and this causes the beautiful tail.
    • A famous comet is “Halley’s comet”
  • Meteors: Momentary Intruders
    • Meteoroids orbit the sun and are much smaller than asteroids.
    • If they enter the earth’s atmosphere they are called a shooting star.
    • The small ones are burned up as it enters our atmosphere.
    • Some large ones cannot be burned up in time and they hit earth.
  • Waxing Crescent First Quarter Waxing Gibbous Right Waning Gibbous Last Quarter Left Waning Crescent New Moon Full Moon
  • Your turn: Label the Moon Cycle
  • Now Draw and Label the Moon Cycle ?
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  • Our Fascinating Earth Earth’s Structure, Earthquakes, Volcanoes, Rocks and Minerals Picture from: http://www.celestiamotherlode.net/catalog/images/screenshots/various/solarsystem_Earth_structure_1__Cham.jpg
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