Earth, stars, galaxies and space
- Created by: Georgia
- Created on: 20-05-13 18:38
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- Earth, stars, galaxies and space
- Solar System
- 8 planets orbiting the sun.
- All orbit in the same direction.
- Moons, planets and asteroids
- Asteroids
- Smaller planets
- Orbit the sun
- Between Mars and Jupiter
- Some come close to the earth
- Comets
- dust and ice
- same size as asteroids
- Orbits away from the sun
- Melts near sun
- Creates a tail
- Melts near sun
- Moons
- Orbit planets
- Most are tiny
- Asteroids
- 8 planets orbiting the sun.
- The sun
- Large
- 109x bigger than Earth
- Source of nearly all energy
- Nuclear fusion energy source
- Smaller nuclei come together and form larger nuclei
- Nuclear fusion energy source
- Large
- Earth and the Universe
- Universe
- everything there is
- Mostly empty
- 14 million years old.
- everything there is
- Earth
- 150 million km from sun
- Nearest star 4 light years
- Diameter 12,800km
- Universe
- Stars and Planets formed
- Star
- Nuclear fusion reaction starts
- Release energy to keep hot
- Nuclear fusion reaction starts
- Planets
- Gravity pulls gas and dust together
- Star
- Galaxies
- Millions of stars
- Ours; Milky way
- Moving away
- Light years
- Distance light travels in a year
- Telescope
- Above the atmosphere
- Difficult, expensive to launch and maintain
- Solar System
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