721104
P1
- The solar system and the stars
- Centre of the solar system is a star = The Sun
- 8 planets in our Solar System
- The planets are spherical and have circular orbits around the sun
- Four planets closest to the sun are solid rock
- Mercury, Venus, Earth and Mars
- Mercury, Venus, Earth and Mars
- Four other planets are gas giants
- Jupiter, Saturn, Uranus and Neptune
- Jupiter, Saturn, Uranus and Neptune
- The planets are spherical and have circular orbits around the sun
- Each planet has a number or moons (Balls of
rock) in near circular orbit around it
- Asteroids -Irregular lumps of rock, near circular
orbit between Mars and Jupiter
- Comets - Small objects made of rock and
ice, very elongated orbits around the sun
- Dwarf Planets - Pluto; are small spherical
lumps of rock in orbit around the sun
- 8 planets in our Solar System
- Nearly all (99%) id the solar system's mass is in the sun
- Jupiter is the heaviest planet, followed by Saturn, Uranus,
Neptune, Earth, Venus, Mars and Mercury
- Neptune has the largest orbit, followed by Uranus,
Saturn, Jupiter, Mars, Earth, Venus and Mercury
- Centre of the solar system is a star = The Sun
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