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20 Cards in this Set
- Front
- Back
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Kepler's first law |
The orbit of a planet is an ellipse with the Sun at one of the two foci |
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Kepler's second law |
Planets sweep out equal areas in equal intervals |
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Kepler's third law |
The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit |
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Earth's interior |
It is super hot. How do we know? because of motion that allows magnetic forces to go through the surface and into space. |
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The moon |
Nearest to the earth, airless pitted ball of rock. We see the same side night after night. There is no wind or rain on the moon, and it is unable to retain heat because of it's small size. |
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Planets in order |
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |
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How did the planets get their names |
They are named after Greek Gods/Goddesses |
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Describe Mercury |
“Roman Winged Messenger” Winged god of travel because he moves so fast ancient craters blasted out by asteroid impacts to scar airless surface |
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Describe Venus |
“Roman Goddess of Love ”Beautiful (brightness) Dense clouds of sulfuric acid droplets cover it Earth’s “twin planet” |
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Describe Earth |
Germanic and old English Means “land” Dutch (Aerede), German (Erda) White clouds, blue oceans, green jungles, and red deserts fill the Earth |
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Describe Mars |
“Roman God of War” (Because of red color) Huge canyons and deserts spread across marsMaybe lakes and oceans reflected a pink sky long ago |
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Describe Jupiter |
Cheap Roman God (an ejected position) Strong atmospheric storms with lightning spread across Jupiter |
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Describe Saturn |
Former “Roman God of Agriculture ”Retired and replaced by Ceres Trillions of icy fragments orbit Saturn Forming bright rings |
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Describe Uranus |
Former “Roman God of the Sky ”Retired and replaced by grandson Jupiter Dark rings surround Uranus Tipped from cosmic collision |
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Describe Neptune |
“Roman Lord of the Sea” Smothering methane clouds whirl in deep blue atmosphere |
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Light Year |
93 million miles- distance from the earth to the sun |
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Types of galaxies |
Spiral, elliptical, lenticular, and irregular |
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Parsec |
A way of describing distances larger than light years and AU, and is 3.26 light years. |
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Neutrinos |
Weakly interacting particles going through your body every second. |
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Dark Matter |
Composed of particles that do not absorb, reflect, or emit light. |
