1. Topic 7: The Solar System Close Up
1. What is the solar wind? Streams of high energy subatomic particles violently thrown into space by erupting solar flares (1pt).
It is significant because it defines the boundaries of the solar system (1 pt).

2. 2. What protects us from the harmful effects of the solar wind?
Earth’s magnetic field (1pt)
(it acts as a force shield, repelling the solar winds)

3. Earth’s Magnetosphere Protecting Earth from Solar Winds
Note magnetefoil

4. WHY ARE WE WORRIED ABOUT SOLAR WINDS?
The Sun is becoming much more active again, with X-class  solar flares.

5. WHY ARE WE WORRIED ABOUT SOLAR WINDS?
Solar winds affect the communication and navigation satellites we rely on for global communication, GPS, weather predictions, military….)

6. WHY ARE WE WORRIED ABOUT SOLAR WINDS?
Large solar flares disrupt and damage satellite functions and have even destroyed satellites.

7. hydrogen + hydrogen  helium (1 pt)
3. Describe the type of reaction that takes place in the sun and is responsible for the release of HUGE amounts of energy like solar flares, light, heat.
FUSION (1 pt)
hydrogen + hydrogen  helium (1 pt)
H + H  He

8. Inside our sun: a deeper look
4xntHE&feature=related
From: The Universe: the History Channel

9. 4. Name the inner planets. What property do they share?
Mercury, Venus, Earth, Mars (1pt)
Terrestrial, rocky composition (1 pt)

10. 5. Name the outer planets. What property do they share?
Jupiter, Saturn, Uranus, Neptune, Pluto (1 pt)
Gaseous composition (1 pt)

11. 6a. Saturn 6b. Pluto 6c. Mercury 6d. Uranus 6e. Earth 6f. Jupiter 6g
6a Saturn 6b Pluto 6c Mercury 6d Uranus 6e Earth 6f Jupiter 6g Venus 6h Neptune 6i Mars (9 points)

12. 7. How were scientists able to view and gain information about the outer planets?
Voyager 1 and 2 were sent to the edge of the solar system with gravitational assists from the planets (1 pt)
Voyager 1 went to Jupiter and Saturn, Voyager 2 went to Jupiter, Saturn, Uranus, and Neptune (1pt)
Neither could reach Pluto

13. Voyager 1 and 2

14. Total Points: 20
Marked by: ___________________