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Sun, Moon and Earth Review Sheet Test Date: __ Rotation/rotates- the spinning of an object, as it stays in one place Revolution/revolves- the movement of an object around another object. The sun, Earth, and other planets are part of the solar system. Our solar system is part of the Milky Way Galaxy. Earth Earth is a planet. Earth receives light from the sun. The Earth rotates on its axis every 24 hours, which causes us to have day and night. The Earth revolves around the sun every 365 ¼ days, causing us to have four seasons. Earth is tilted and spins on its axis, which is an invisible line that runs through Earth’s North and South poles. Moon The moon does not produce any light of its own. The sunlit part of the moon is a reflection of light from the sun. The moon appears to change its shape because our view of the moon from Earth changes along with the part of the moon that gets lit from the sun. This happens because of the revolution of both the moon and Earth. There are 8 different appearances of the moon, called phases. The gravitational pull between the moon and the Earth causes the ocean water to rise and fall in daily tides. A full lunar cycle is about 29 days. Waxing means that the sunlit part is getting bigger. Waning means that the sunlit part is getting smaller. ○○○○○○○○ New Moon Waxing Crescent First Quarter Waxing Gibbous (The light part of the moon is getting bigger) Full Moon Waning Gibbous Third Quarter Waning Crescent (The light part of the moon is getting smaller) Sun The sun is a star. The sun is approximately 93 million miles away from earth. The sun has sunspots and prominences. o Sunspot- Storms on the suns surface o Prominence- Flaming streams of gas that arch up through the sun’s atmosphere This test will have multiple choice questions and short response questions. Be able to identify the phases of the moon. Earth’s Rotation Earth’s Revolution