1. The Sky from Earth
Chapter 11 lesson 1

2. What did Arybhata discover?
He thought that stars moved from east to west because Earth moves from west to east.

3. What 5 things might you see in the night sky on a clear night?
Stars
The moon
Planets
Meteors
Comets

4. What is a natural satellite?
A body that orbits that is not man made

5. What is Earth’s natural satellite?
The moon

6. What are the three requirements for a planet?
Orbits the sun
Rounded by gravity
Cleared the area of its orbit

7. What is a “shooting star”?
A meteor

8. What is the difference between a meteor and a comet?
A meteor is an object that is burning up in the earth’s atmosphere
A comet is a cold mixture of dust and ice

9. What is known about a stars’ location in the sky?
The stars position is based on the position of the other stars relative position

10. What are the two ways that scientists use the word “constellation?”
A pattern of stars
An area of the sky and all the items in that area

11. How many western constellations are there?88

12. What is a star chart?
It is a chart that can help you locate a star in the night

13. What is Polaris?
The north star

14. What is apparent motion of items in the sky based on?
The objects in the sky appear to move based on the motion of earth.

15. What causes the stars and suns apparent movement in the sky?
The earth turning west to east

16. What causes the seasonal changes in the objects in the night sky?
Causes by earth’s orbit around the sun

17. What constellations can you see year round?
The constellations close to the north star

18. What is the zodiac?
The area in the sky where the planets orbit the sun

19. When can you see Mars, Jupiter, and Saturn?
When the Earth passes between the planets and the sun they become visible

20. When can you see Venus and Mercury?
In the evening and early morning

21. What is the brightest planet in the night sky?
Venus