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SEM Test
Sun, Earth, Moon Test- 3.4.10
| Question | Answer |
|---|---|
| What is the main source of energy for Earth? | Sun |
| The Sun is bigger than the Moon, but they appear to be the same size in the sky when you look at them from Earth. Why is that? | The Moon is closer to the Earth than the Sun. |
| Why do we experience day and night? | The Earth rotates on its axis. |
| Why is it necessary to add a day to the calendar every 4 years? | The orbit of the Earth is not exactly 365 days. (365 1/4) |
| Since the Moon produces no light, why does it shine at night? | The Moon reflects the light from the Sun. |
| The movement of the Earth around the Sun is called its _______ or orbit. | revolution |
| The spinning of the Earth on its axis is called ________. | rotation |
| How long does it take for Earth to complete on rotation on it axis? | 24 hours |
| How long does it take for Earth to complete one revolution around the Sun? | 1 year |
| The Earth is currently tilted on its axis ____ degrees. | 23.5 |
| What are sunspots? | A relatively darker, cooler area on the Sun's surface that emits charged particles. |
| What are aurouras? | Light display occurs mostly near the poles when gases in the Earth's atmosphere glow when hit by charged particles carried by solar winds. |
| Why should you also examine your study guide for charts and pictures? | Because that will help me score an A on the test!! You must be able to identify a picture of a solar and lunar eclipse. You must also be able to read a graph about sunspots. :) |
Created by:
AMS
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