the solar system what is the solar system? the solar system is made up of the sun, the planets,...
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The Solar SystemThe Solar System
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What is the Solar System?What is the Solar System?
• The Solar System is made up of the sun, the planets, their moons, asteroids, and comets.
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Order of PlanetsOrder of Planets
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Order of PlanetsOrder of Planets
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Solar System VocabularySolar System Vocabulary
• Solar System: The sun together with the eight planets and all other celestial bodies that orbit the sun.
• Outer Planets: Any of the four planets, Jupiter, Saturn, Uranus, Neptune, with orbits outside that of Mars.
• Inner Planets: Any of the four planets, Mercury, Venus, Earth, and Mars, whose orbits are closest to the sun.
• Telescope: An arrangement of lenses or mirrors or both that allows the observation of distant objects
• Axis A straight line about which a body or geometric object rotates or may be conceived to rotate.
• Planet A celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves
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Solar System VocabularySolar System Vocabulary• Orbit: The path of a celestial body or an artificial satellite as it
revolves around another body. • Rotation: The act or process of turning around a center or an
axis: the axial rotation of the earth. • Star: A self-luminous celestial body consisting of a mass of
gas held together by its own gravity.• Constellation A formation of stars perceived as a figure or
design.
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Planet ScalePlanet Scale
• http://science.nationalgeographic.com/science/space/solar-system
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How big is outerspace?How big is outerspace?
• YouTube - Bill Nye The Science Guy on Outerspace (Full Clip)
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The SunThe Sun
• The sun is a star.• It is at the center of our
Solar System.• The eight planets orbit
around the sun.• It is made up of swirling
gases and nuclear reactions.
• The sun provides the Earth with heat and light.
• The sun is very, very hot.
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Stars in the night sky Stars in the night sky
• Constellations
• http://youtu.be/I7m61DnPqvE
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How is the Solar System made How is the Solar System made Up?Up?
• The Solar System is made up of:– the inner planets
• Mercury, Venus, Earth, & Mars
– The asteroid belt• Thousands of asteroids are in this belt. Asteroids
are rocks that orbit around the sun.
– The outer planets• Jupiter, Saturn, Uranus, Neptune
– Comets are also part of the Solar System.
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The Solar System is made up of:The Solar System is made up of: the inner planets the inner planets
Mercury, Venus, Earth, & MarsMercury, Venus, Earth, & Mars• There are four inner planets
• They are small
• They are solid
• They have no more than two moons
• The closer the planets are to the sun the faster they revolve
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Outer PlanetsOuter PlanetsJupiter, Saturn, Uranus, NeptuneJupiter, Saturn, Uranus, Neptune
• No surface, because they are made of gasses
• There are four outer planets
• The biggest outer planet is Jupiter
• All of the outer planets have rings
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What is a What is a planetplanet??
A planet is a body which revolves around a sun. It has no light of its own, but reflects the light of the sun. It is in orbit around the sun. Our Solar System contains 8 planets.
Mercury Venus Earth Mars Jupiter
Saturn Uranus Neptune
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Bill Nye GravityBill Nye Gravity
• http://youtu.be/6f6maa9xPDM
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How far are the planets of our solar How far are the planets of our solar system apart?system apart?
• http://youtu.be/97Ob0xR0Ut8
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TechnologyTechnology
• How can we see the planets and the stars?
• Space Ships
• Telescopes
• Satellites
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Which one is the smallest?Which one is the smallest?Which one is the largest?Which one is the largest?
• Can you put these in size order?
• Place the following in order from largest to smallest.
• Moon• Sun• Earth
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Answer: Sun, Earth, then Answer: Sun, Earth, then moonmoon
• The sun is the largest• Next in size is the Earth.• The moon is smaller than the
Earth.
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The Earth:The Earth:
• -is the third planet from the Sun,• -rotates on its imaginary axis
counterclockwise every • 24 hours or 1 day,• -appears blue in space because it is 70% water, -revolves around the sun every 365 days or 1 year.
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The seasons and the tilt of the The seasons and the tilt of the EarthEarth
• http://youtu.be/DuiQvPLWziQ
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Moon PhasesMoon Phases
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Which of these is the next Which of these is the next phase of the moon?phase of the moon?
• New Moon --- Waxing Crescent --- ?
• F Full Moon
• G Waning Crescent
• H First Quarter
• J Waxing Gibbous
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The next major phase of the The next major phase of the moon would be…moon would be…
• First quarter.
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• The moon revolves around -
– F itself– G the Earth– H the sun– J the solar system
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The MoonThe Moon
• The moon is a satellite that revolves around the Earth
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• The moon revolves or orbits the Earth once every 29 days.
• We all ways see the same side of the moon because the moon rotates and revolves at about the same speed.
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Moon Phases Bill NyeMoon Phases Bill Nye
• http://youtu.be/Gl89fdJ7JUM
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Rotation causes day & night.Rotation causes day & night.
• Rotation is the turning or spinning of the Earth in one place on its imaginary axis.
• Rotation of the earth on its axis causes day & night. (answer A).
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Which of these is caused by the Which of these is caused by the turning of the Earth?turning of the Earth?
– F Summer and winter– G Stars– H Day and night– J Moon phases
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The revolution of the Earth The revolution of the Earth around the Sun takes-around the Sun takes-
– A a day & night or 12 hours– B a week or 7 days– C a month or 29-31 days– D a year or 365 days
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The revolution of the Earth The revolution of the Earth around the sun around the sun
• Takes 365 days • or one year.• The Earth is a
satellite of the Sun• NOTE:• Due to the tilt of the
Earth’s axis during revolution, the Earth experiences seasons.