Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked , , and . For questions 8-10, complete the sentences with the information given in the passage.
The Earth
Power and Light
Compared to the rest of the universe, the Earth is very small. Our planet and seven others orbit the Sun, which is only one of about 200 billion stars in our galaxy. Our galaxy, the Milky Way, is part of the universe, which includes millions of other
galaxies and their stars and planets. By comparison, the Earth is microscopic.
Compared to a person, on the other hand, the Earth is enormous. It has a diameter of 7,926 miles at the equator, and it has a mass of about 6 x 1024 kilograms. The Earth orbits the Sun at a speed of about 66,638 miles per hour . Dont dwell on those numbers too long, though; to a lot of people, the Earth is inconceivably, mind-bogglingly big. And its just a fraction of the size of the Sun.
From our perspective on Earth, the Sun looks very small. This is because its about 93 million miles away from us. The Suns diameter at its equator is about 100 times bigger than Earths, and about a million Earths could fit inside the Sun. The
Sun is inconceivably, mind-bogglingly bigger.
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