1. How would you describe the universe to someone not in our class?
2. What are the three major types of galaxies? (three points)
3. What is the force that holds galaxies together?
4. What, according to the reading, do stars spend all of their time doing?
5. Describe in your own words the big bang theory.
6. Why do we see the colors that we see when we look around us?
7. Which type of visible light has the longest wavelengths?
8. Which type of visible light has the shortest wavelengths?
9. Name an example of where sound or light waves are stretched out or compressed.
10. Name and describe in your own words the first evidence of the big bang theory.
11. What kind of “shifting” do we see nearly everywhere we look in the universe?
12. Name and describe in your own words the second big evidence of the big bang theory.
13. Name and describe in your own words the third big evidence of the big bang theory.
14. How would you describe a heavy element to someone who doesn’t know what it is?
15. Where did the Earth get all of the heavy elements that it is made of?
16. What are the requirements of being a “main sequence” star?
17. What is the heaviest element that our sun will ever create?
18. What is heaviest element that larger stars will ever create before they explode?
19. What do you call the violent collapse and explosion of large stars?
20. According to the packet, out of our entire universe, what is the most unique thing that we know about?
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Answers
Metabolic reactions
Explanation:
metabolism in/by non living things
Answer:
1.The physical Universe is defined as all of space and time (collectively referred to as spacetime) and their contents. Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.
2.Astronomers group galaxies by shape, and although there are many different types of galaxies, most fall into one of three categories: spiral, elliptical or irregular.
3.Gravity. All of the stars of a galaxy are all attracted to each other. This attraction is weak because the stars are very far apart, but it is enough to keep the galaxies together. There is also a large amount of matter that has never been seen (called "dark matter") that helps keep galaxies together.
Explanation: