我们的太阳系工作表供您的学生完成。
工作表information:
我们的太阳系由八个行星和许多围绕太阳绕的较小物体组成。
太阳是太阳系中心的星星。它的重量约为地球质量的330,000倍。
八个行星是绕太阳绕的最大物体。最接近太阳的四个较小的行星是水星，金星，地球和火星。这四个“陆地行星”主要由岩石和金属组成。
The four outer planets, called the ‘gas giants’ are substantially larger than the terrestrials. The two largest are Jupiter and Saturn, composed mainly of hydrogen and helium. The two outermost are Uranus and Neptune, composed largely of ices, including frozen water, ammonia and methane.
所有行星在太阳周围几乎圆形轨道，在一个称为黄道平面的几乎平坦的圆盘中。
Our Solar System is located within one of the outer arms of the Milky Way galaxy, which contains about 200 billion stars.
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