Flashcards in Chapter 29& 30 Deck (23):
Our solar system
Was formed from a nebula
Has planets that orbit the sun
Has eight planets- including four inner planets; including three outer planets
Has other objects including comets
What planets is closer to the sun?
What is the largest planet?
Which planets has been studied extensively for life?
What planets has the complex ring system?
Our solar system about how many years ago?
4.6 billion years ago
Enormous cloud of gas, ice, dust... Called?
Is our solar system heliocentric or geocentric?
Heliocentric with planets orbiting the sun in a counterclockwise
Planet with an extremely dense atmosphere?
Large canyon on mars?
Planet classification that orbits inside the asteroid belt?
Planet classification that orbits outside the asteroid belt?
The order of the planets
Closest to farthest away
How does distance from the sun affect the speed of a planet?
Planets close to the sun it's mass is closer to the center of the solar system which results in an increased orbit speed
Planets in outer orbits orbits mass is farther from the center of the solar system, slows down speed of orbit
The inner planets
Mercury, Venus, earth , mars
Jupiter, Saturn, Uranus, Neptune
Why are the planets close to the sun rocky and smaller?
High temperatures vaporized the light elements so the planets have rough surfaces
Harsh environments where life exists on earth
Great pressure by volcanic vents- hot and dark
Permafrost areas in northeast Siberia- extreme cold
Mud in Mono Lake, CA- dark, lacking oxygen, large amounts of salt
Which planets has the moon Titan?
Saturn, Titan is its largest moon
Earths shape is?
Orbits the sun once a year