Transcript olar system powerpoint

Solar System
(Moon, Stars, Sun, Planets)
Amy Johnson and Cheri Scheer
Seventh Grade Science
updated 2005
General Objective
• Objects and Their Motion in the Solar
System
– Strand 6, Concept 1 & 2 (GLE)
Concept Map
Concept Map
Seasonal Changes
Time Zone
Tilt of the Earth and Dates
• Earth rotates on its axis once every 24 hours
• Axis is tilted at 23 1/2 degrees
• Earth revolves around sun every 365 1/4 days
in an elliptical path
practice
Moon
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Phases and Dates Quiz
Lunar Landing (yes or no)
Eclipses
Other planets
practice
Eclipses
Planets
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INNER PLANETS
Mercury
Venus
Earth
Mars
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OUTER PLANETS
Jupiter
Saturn
Uranus
Neptune
• Pluto
INNER PLANETS
• Terrestrial
• Small
• Solid
MERCURY
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Slightly bigger than the Moon
Covered with craters
1 Mercury day is 59 Earth days
-180 to 400° C
1 Mercury year= 88 Earth days
VENUS
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Covered with thick clouds
Atmosphere is almost all CO2
Surface temperature 475 °
1Venus day is 243 Earth days
1 Venus year is 225 Earth days
Retrograde Rotation
EARTH
• Changing weather patterns
• Key to life is water
• Perfect distance from the Sun to support life
MARS
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Thin atmosphere of CO2
Water only polar caps
Covered in volcanoes
Dusty, barren surface appears red
2 moons: Phobos and Deimos
1 day-1day 1year =687 days
½ diameter, 1/10 mass of Earth
OUTER PLANETS
• Gas giants
• No solid surfaces
• Pluto not considered an outer planet
JUPITER
• Made primarily of hydrogen and helium
• Giant Red Spot is a storm/tornado system the size of 1½
Earths
• Largest planet (able to hold all other planets)
• 60 known moons
– Io, most volcanically active place in solar system
– 3 of 4 large moons have icy surfaces
• 1 day = @ 10 hours
1 year = 11.9 years
SATURN
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Second largest planet
Made of hydrogen and helium
Winds blow 900 mph
31 known moons
– Titan is larger than Mercury
• Rings are a few hundred meters thick and are the largest
– Can be seen from Earth with telescope
– Three main with thousands of ringlets
• 1 day = @ 10 hours
1 year = 29.5 years
URANUS
• Featureless, blue-green
• Mainly hydrogen, helium, and methane
– Absorbs red part of sunlight
• Rotates on its side
– Possibly struck by massive object
• Has 13 rings
• Has 27 moons
– Miranda shows evidence of being struck, breaking apart, and
collecting together again
• 1 day = 17 hours
1 year = 84 years
NEPTUNE
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Made similar to Uranus with cloud belts
Great Dark Spot similar to Great Red Spot
Looks like faint blue-green star
Set of very narrow rings
13 known moons
– Triton is smaller than Earth’s moon
– Orbits opposite of Neptune’s spin
• 1 day = 18 hours
1 year = 165 years
PLUTO
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Smallest
rock and nitrogen ice with thin methane atmosphere
Only planet never visited by a mission
Sometimes orbit path is inside Neptune’s orbit making
Neptune outermost planet
• One moon
– Charon is more than half the size of Pluto
• 1 day = just over 6 days 1 year = 248 years
Project
Let’s Have FUN!
• Space Trivia
• Order Up!
• Adlib Story
MAP Assessment
MAP Assessment
Map assessment
• Explain why we are closer to the sun in the
winter but still warmer in the summer?
Lesson Summary
Summary
Citations, Credits, References
• http://www.worldtimezone.com
• http://www.enchantedlearning.com/subjects/astrono
my/planets/earth/Seasons.shtml/
• http://www.astro.wisc.edu/~dolan/java/MoonPhase.
html
• http://www.enchantedlearning.com/subjects/astrono
my/moon/Phases.shtml
• http://www.enchantedlearning.com/subjects/astrono
my/activities/label/labelmoonphases.shtml
Citations, Credits, References
• http://www.windows.ucar.edu/tour/link=/kids_s
pace/answers_moon.html
• http://www.lunaranomalies.com/fake-moon.htm
• http://www.windows.ucar.edu
Career Areas
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Astronaut/Aerospace Engineer/Astrologer
Farmer
Meteorologist
Oceanographer