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Moon Phases
Earth's Place in the Universe
| Question | Answer |
|---|---|
| How long is a day? | 24 hours |
| The reason we have day and night. | Earth spins on its axis. |
| Earth rotates in this direction. The sun rises in the east and sets in the west. | Counterclockwise. |
| How long is one year? | 365.25 days |
| The earth orbiting the sun. | One Earth Year |
| How long is a lunar cycle? The moon orbiting the Earth | 29.5 days, or one Month |
| Why do we only see one face of the moon? | The moon rotates at the same speed as it revolves around the Earth. |
| The shape of the lit portion of the Moon that we see from Earth. | Moon Phases |
| The part of the moon that is always facing the Sun. | Sunlit half |
| When the Moon is between the Sun and the Earth. We can not see the moon during this phases. | New Moon |
| When the Earth is between the Moon and Sun. We see all of the moon during this phases. | Full Moon |
| When the lit portion of the moon seems to be growing in size. | Waxing |
| When the lit portion of the Moon seems to be getting smaller. | Waning |
| When less than half of the moon is lit up | Crescent Moon |
| When half of the moon is lit up. | First and Third Quarter Moon |
| When more than half of the moon is lit up | Gibbous Moon |
| When an object in space passes between two other objects. | Eclipse |
| During a New Moon, the moon passes between the Earth and Sun. What kind of Eclipse is this? | Solar Eclipse |
| When the Earth passes between the Moon and Sun. What kind of Eclipse is this? | Lunar Eclipse. |