Answer the questions.
1) How many kilometers above the Earth do astronauts work?
2) What is the speed of the space ship?
3) What do the letters ISS mean?
4) Do astronauts do many things differently in space?
5) What do they need to take a shower?
6) What happens to their muscles in zero G?
7) What must astronauts do to keep their muscles hard?
8) Can bacteria live in zero G?
9) What size has the station got?
10) What place can the astronauts sleep in zero G?
II.
Match:
dangerous
2. clean the hole
3. a football
4. the lack
5. to stop
6. to cover
a) of gravity
b) your eyes
c) their meals
d) bacteria
e) station
f) pitch