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Moon Voyage
terms from the Moon unit
| Question | Answer |
|---|---|
| Rotation | the turning of the Earth on it’s axis. |
| Axis | the imaginary line from the North Pole through the center of the Earth to the South Pole |
| Time Zones | A standard time zone is a longitudinal belt 15* wide. |
| Day | The amount of time the Earth takes to complete one rotation |
| Revolution | the time it takes the Earth to travel (orbit) around the sun one |
| Summer Solstice | When the sun reaches it’s in the sky, the North Pole is pointed 23 ½ * toward the sun. The longest day of the year in the Northern hemisphere and the shortest day in the southern hemisphere. |
| Winter Solstice | The North Pole is tilted 23 ½ * away from the sun. The shortest day of the year in the northern hemisphere and the longest day of the year in the southern hemisphere. |
| Moon | the Earth’s nearest neighbor in space. |
| Phases of the Moon | moon appears to change shape in the sky. The revolution (trip around the Earth) of the moon causes the phases. The moon goes through all it’s phases every 29.5 days. |
| New Moon | when the moon comes between the sun and the Earth. The side of the moon facing the Earth is in darkness. The moon is NOT visible. |
| Waxing | the moon appears to be getting larger |
| Waxing Crescent the moon appears to be getting bigger, a thin sliver of moon is seen after the new moon, before the 1st quarter. | Waxing Crescent – the moon appears to be getting bigger, a thin sliver of moon is seen after the new moon, before the 1st quarter. |
| 1st Quarter | after the waxing crescent –half of side of the moon can be seen |
| Crescent | after the new moon, crescent shaped* thin sliver |
| Waxing Gibbous the moon appears to be getting after the 1st quarter and before the full moon | Waxing Gibbous – the moon appears to be getting after the 1st quarter and before the full moon |
| Full Moon | after the Waxing Gibbous, * all ONE side is seen. |
| Waning | getting smaller |
| Last Quarter | after Waning Gibbous,* ½ of the front side of the moon is seen. |
| Waning Crescent | after the Last Quarter ,* thin sliver of moon can be seen, * moon appears to be getting smaller |
| Eclipse | as the moon revolves around the Earth and the Earth and the moon together revolve around the sun, they sometimes block out some of the sun’s light / or “moonlight”. |
| Solar Eclipse | when the new moon comes directly between the sun and the Earth, the sunlight is blocked from reaching the Earth. |
| Lunar Eclipse | when the Earth comes directly between the sun and the full moon. Moon passes through the Earth’s shadow. |
| Earthshine | the moon has a glow that is reflected light from the earth |
| Tides | Rise and fall of the ocean’s caused by the moon’s gravitational pull on the Earth. |
| Springtides | higher than normal high tide |
| Neaptides | lower than normal high tide |