earth and the sun ,the earth is blocked by the sun light - Once a month the moon passes between the ?, leap year 29th of feb - Every 4years we have a ? , 25days to move around the sun - The earth roates 30.5°every ?, a moon that gets more sun light on it as the day goes by - what is a waxing moon , after the full moon and will remain waning until we again experience a new moon - what is a waning moon , a period of moderate tides when the sun and moon are at right angles to each other - what is a neap tide , a tide just after a new or full moon, when there is the greatest difference between high and low water. - what is a spring tide , When the highest part, or crest of the wave reaches a particular location - what is a high tide , water level that has dropped as a result of the moon's gravitational pull on the Earth - what is a low tide , 365 day - how long it take for the earth to orbit the sun,

tides

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