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CLOZE ing in on Science! 3.8CD: Space Earth and Space Name: ______________________________ Date: ____________________________ Key Concept 1: Models can be used to represent the Moon orbiting Earth and Earth orbiting the Sun. Passage In our solar system, there are __________________ planets that revolve around the Sun. Earth is unique because it has only one ___________ that orbits around it. Earth revolves around the star in our solar system called the ______________. The word orbit describes the _______________ that something takes when it moves in an oval or almost circular pattern. How long do these orbits take? Do you think they’re all the same? Word Bank moon path Sun eight Illustration © 2011 Rice University – All Rights Reserved CLOZE ing in on Science! 3.8CD: Space Earth and Space Key Concept 2: The planets of our solar system each orbit the Sun. Passage The planets are different in many ways, but they also have some ___________________ properties to one another. One similar property is that all of the planets _________________, or circle around, the __________. This path takes the planets different amounts of time depending on how _____________, or distant, they are from the Sun. The outer planets such as Jupiter or Saturn have a _________________ orbit because they have farther to go to revolve around the Sun. Word Bank far orbit Sun similar longer/larger Illustration © 2011 Rice University – All Rights Reserved CLOZE ing in on Science! 3.8CD: Space Earth and Space Key Concept 3: The closest planet to the Sun is Mercury, followed by Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Passage All of our planets in our solar system _______________________ around the Sun. There are four inner planets, including ___________________, which is closest to the Sun, followed by Venus, _______________, and Mars. There are also ______________ outer planets, consisting of Jupiter, ___________________, which has rings, _____________, and then farthest from the Sun is Neptune. Word Bank four Saturn revolve/orbit Earth Mercury Uranus Illustration © 2011 Rice University – All Rights Reserved CLOZE ing in on Science! 3.8CD: Space Earth and Space Answer Key In our solar system, there are eight planets that revolve around the Sun. The Earth is unique because it has only one moon that orbits around it. The Earth revolves around the star in our solar system called the Sun. The word orbit describes the path that something takes when it moves in an oval or almost circular pattern. How long do these orbits take? Do you think they’re all the same? The planets are different in many ways, but they also have some similar properties to one another. One similar property is that all of the planets orbit, or circle around, the Sun. This path takes the planets different amounts of time depending on how far, or distant, they are from the Sun. The outer planets such as Jupiter or Saturn have a longer/larger orbit because they have farther to go to revolve around the Sun. All of our planets in our solar system revolve/orbit around the Sun. There are four inner planets, including Mercury, which is closest to the Sun, followed by Venus, Earth, and Mars. There are also four outer planets, consisting of Jupiter, Saturn, which has rings, Uranus, and then farthest from the Sun is Neptune. © 2011 Rice University – All Rights Reserved