Essential Questions for Space!

Unit One Essential Questions

1.  What does the Universe include?

2.  What is the Big Bang?

3.  About how many stars are there in the Universe?

4.  How long ago did the Universe form?

5.  Explain why the galaxies are moving outward.

6.  Do you think the galaxies will continue to move outward?

7.  If you had a spaceship that could move at the speed of light, could you visit another galaxy?

8.  Explain what is meant by astronomy.

9.  Which six planets did the ancients know about?  Why did they know about these six and not all of them?

10.  Why was astronomy important to the ancients?

11.  Name the planets that were known about, five thousand years ago.

12.  What did ancient astronomers use when studying the sky?

13.  Who was the first astronomer to use a telescope?

14.  Why did sailors use the stars and not the planets to find their way at sea?

15.  Why did the Greeks call some stars planetes?

16.  Explain how Galileo, Kepler, and Copernicus believed the Solar System worked.

17.  Explain how Aristotle and Ptolemy thought the Solar System worked.

18.  How has our understanding of the Solar System changed over the last 2,000 years?

19.  Who came up with the Scientific Method and how did he use it?

20.  Explain the heliocentric and geocentric models of the solar system.  Which one was first and which is correct?

21.  How would the solar system change if the universal force of gravitation were to change?

22.  When did the idea of the heliocentric model first come up?

23.  How has technology help change our ideas about the universe?

24.  Scientists think that the universe began about how many years ago?

25.  What is the name of the telescope which orbits the Earth?

26.  How have our ideas about astronomy changed over the last 2,000 years?

27 .  Go to “Reference Sites”, “Wikipedia” and find out what the name of each of these stars means and what language it comes from.  Vega, Sirius, Aldebaran, Polaris, Algol, Capella, Betelgeuse, Proxima Centauri, Antares.