SCI 151 Week 1 Basics of Astronomy Worksheet

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Complete the Basics of Astronomy Worksheet.

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Basics of Astronomy Worksheet

Complete the table based on the readings for this week: Ch. 1–4 of The Essential Cosmic Perspective.

Term or concept

Definition and explanation

The Universe

1. What is Earth’s Sun and what is its role in the solar system?

2. What is the Milky Way galaxy and the Sun’s position in it?

3. What is the Big Bang and what does it say about the age of the universe?

4. What is meant by the phase “looking out in the universe is looking back in time?”

Location in the Universe

5. What is Earth’s place in the solar system?

6. How close are the nearest stars to the Sun as compared to the distance between the Sun and the Earth?

7. How large is the Milky Way galaxy?

8. How many stars are estimated to exist in this galaxy?

9. How old is the earth compared to the universe itself?

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