section 4

Question 1

danger of leaving earth

Answer 1

weather, malfunctioning equipment and birds can interfere with launch

Question 2

dangers in space

Answer 2

floating debris, meteoroids, loss of radiation

Question 3

danger of returning to space

Answer 3

perfect re-entry path needed
if angle is too steep you go to fast and burn
if angle is too shallow you wont make it past atmosphere

Question 4

space junk

Answer 4

pieces of debris that have fallen off spacecrafts and remain floating in space

Question 5

canadarm

Answer 5

a remote controlled arm attached to space shuttles

biggest canadian contribution to space travel

launch and retrieves satellites
helps fix the Hubble
put together modules of ISS