Space (part 1)
- Created by: theninjaemu
- Created on: 12-04-16 11:41
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- Space
- The Solar System
- 8 planets and asteroids
- Mercury, Venus, Earth Mars
- Jupiter, Saturn, Uranus, Neptune
- Asteroid belt
- Held together by gravitational attraction
- Larger things attract smaller things (why planets orbit stars)
- Gravity makes things already moving change their course (so why planets orbit)
- The circular orbits create centripetal force
- 8 planets and asteroids
- Asteroids and comets
- Astreoids
- Between Mars and Jupiter
- Didn't form a planet because of Jupiter's large gravitational attraction interfering
- Made of rock
- Comets
- Made of rock, dust and ice
- Orbit in elongated eliptical orbits
- The tail on comets near the sun is the ice burning up
- They speed up as they near the sun
- Astreoids
- NEOs
- Asteroids or comets on collision course with the Earth
- If they are small, they will burn up in the atmosphere
- They can be deflected by exploding a bomb on or near its surface
- The Moon
- Formed when a Mars-sized object collided with the Earth
- Has a lower density than Earth
- Doesn't have a large iron core
- The Solar System
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