Today's assignment : Correct p. 15 (Activity 3)
With the help of Internet, answer the following questions :
1) What are the distances between the Sun and the eight planets in our Solar System ?
2) What are the two unit of distances used in the universe ? (hint : one is used inside our Solar System, the other is used outside of it)
3) After finding these two units of distance measure, give each of its lengths in kilometres.
4) If a star is 40 light years away, how far away is it in kilometers ?
5) If a galaxy is 900 000 000 000 000 kilometers away, how many light years covers this distance ?
6) Find a scientific article online that deals with radar technology.
7) Find a scientific article online that deals with the parallax technique.
What is the name of the instrument that allows us to shows a flat image in three dimensions ?
9) What is the material needed to built one of there instruments ?
10) Find an image online that is a representation of the parallax technique.
Homework :
Finish research questions 
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