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Earth, Moon & Space
| Question | Answer |
|---|---|
| axis | The imaginary line that passes through Earth's center and the North and South poles |
| rotation | The spinning motion of a planet around its axis |
| revolution | The movement of one object around another object |
| orbit | The path of an object as it revolves around another object in space |
| day | Each 24 hour cycle of day and night |
| astronomy | The study of the moon, stars and other objects in space |
| What causes day and night? | Earth's rotation on its axis |
| Why does Earth have seasons? | The Earth's axis is tilted as it moves around the sun |
| solstice | The 2 days of the year when the sun is overhead at 23.5 degrees North or South (longest or shortest days of the year) |
| equinox | Days and nights are exactly the same length because neither hemisphere is tilted away from the sun |
| How is the Northern Hemisphere titled in relation to the sun when it is summer? | The Northern Hemisphere is tilted towards to the sun |
| Why is it warmer near the equator? | At the equator sunlight hits Earth's surface directly and is less spread out. |
| How does the moon move? | The moon revolves around the Earth and rotates on its own axis. |
| What causes the different phases of the moon? | The positions of the sun, moon, and Earth and how they line up. |
| How often does the moon go through a whole set of phases? | Around once a month or each time the moon revolves aroudn the Earth |
| Describe a New Moon | The side of the moon facing Earth is dark |
| Describe a First quarter | Half of the side of the moon facing Earth is lighted |
| Describe a Full Moon | All of the moon facing Earth is lighted |
| Describe a Third quarter | Half of the side of the moon facing Earth is lighted |
| When does an eclipse occur? | When the moon's shadow hits Earth or Earth's shadow hits the moon |
| What is a solar eclipse? | When the moon blocks sunlight from reaching Earth |
| What is a lunar eclipse? | When Earth blocks sunlight from reaching the moon. |
| What is the arrangement of the Earth, moon, and sun during a lunar eclipse? | Earth is directly between the moon and the sun. |
| What are tides? | The rise and fall of ocean levels. |
| Why do tides occur? | Differences in how much the moon pulls on different part of the Earth (gravity) |
| Describe the moon | It contains craters, highlands and maria |
Created by:
jmebuckley
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