Download UNIT 2 REVIEW STUDY GUIDE

UNIT 2 REVIEW STUDY
GUIDE
PLANETS IN ORDER FROM THE SUN
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SUN
1. MERCURY
2. VENUS
3. EARTH
4. MARS
ASTROID BELT
5. JUPITER
6. SATURN
7. URANUS
8. NEPTUNE
9. PLUTO
Planets in order from smallest to biggest
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1. Pluto – (Not technically a planet) .18 Earths – You could fit five Mercury’s in Earth
2. Mercury – .38 Earths – You could fit about 2.25 in Earth
3. Mars – .53 Earths – You could fit about 2 Mars in Earth
4. Venus – .95 Earths – Venus is about the same size as Earth
5. Earth –
6. Neptune – 3.8 Earths – You could fit about 4 Earths into Neptune
7. Uranus – 4.0 Earths – You could fit 4 Earths into Uranus
8. Saturn – 9.4 Earths – You could fit about 9.5 Earths in Saturn
9. Jupiter – 11.2 Earths – You could fit about 11.25 Earths in Jupiter
Here is a picture of a scale of the planet sizes.
COMETS, ASTROIDS, METEORS, METEORITES
• Which is which?
Comets
• Comets – Object made of ice, gas, and dust that travels through space
Asteroid
• Asteroid – A piece of rock that is in space and has not entered into
the Earth’s atmosphere.
Meteors
- Meteors – A piece of rock that has entered into the Earth’s
Atmosphere but it burns up before it hits the Earth. (shooting star)
Meteorite
• Meteorite – meteor that strikes the Earth’s Surface