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Earth, Sun, Moon
Question | Answer |
---|---|
axis | the imaginary line that passes through Earth’s center and the North and South poles |
craters | large round pits on the moon’s surface |
eclipse | the partial or total blocking of one object in space by another |
equinox | twice a year when day and night are each about 12 hours long everywhere on Earth |
lunar eclipse | occurs at a full moon when Earth is directly between the moon and the sun |
maria | dark, flat areas on the moon’s surface formed from huge ancient lava flows |
meteoroid | a chunk of rock or dust in space |
moon phases | the different shapes of the moon you see from Earth |
neap tide | a tide with the least difference between consecutive low and high tides |
Newton’s law of universal gravitation | states that every object in the universe attracts every other object |
orbit | Earth’s path as it revolves around the sun |
penumbra | the part of a shadow surrounding the darkest part |
revolution | the movement of one object around another |
rotation | the spinning of Earth on its axis |
solar eclipse | occurs when the moon passes directly between Earth and sun, blocking sunlight from Earth |
solstice | when the sun is farthest north or south of the equator |
spring tide | a tide with the greatest difference between consecutive low and high tides |
tide | the rise and fall of ocean water that occurs every 12.5 hours or so |
umbra | the darkest part of a shadow |
waning | to shrink |
waxing | to grow |