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Astronomy (2)
SOL Astronomy review
| Question | Answer |
|---|---|
| What is the order of planets from the Sun? | 1. Mercury, 2. Venus, 3. Earth, 4. Mars, 5. Jupiter, 6. Saturn, 7. Uranus, 8. Neptune. |
| Which two planets have no tectonic plate tectonic activity? | Mars and Mercury. |
| Inner planets are similar in: | Composition: iron and nickel cores, mantles and crust |
| What do comets do and what are they made up of? | Orbit the sun and are made up of frozen gases. |
| What are meteoroids? | Left over pieces of a comet's tails floating in space |
| What are meteors called after it strikes Earth? | Meteorites |
| What is the Impact Theory? | 25. The Impact Theory states that the Moon formed when a large object struck the Earth and material from inside the Earth was ejected out in space and this material formed the moon. |
| Explain solstice. | When the sun is at its most northern point or at its most southern point. |
| How long does it take for the Earth to revolve around the sun? | 365 days or one year. |
| What causes the seasons? | The Earth tilted on its axis, The tilt combined with revolution. |