Good morning. Welcome to our Fun Science Program. This week we have received a lot of questions about life on the moon. We have talked to some experts and these are what we have (17) ______________ out. There is no water or air on the moon. It is all silent (18) ______________ there is no air. Of course, there will be no music, no sounds. There are no rivers and no lakes. At night, it is very cold. The (19) ______________ goes down to 151^oC below zero. But during the day, it rises to 100^oC above zero.

       There are great round holes on the moon. They are called craters. There are more than 30,000 of them. There are also high mountains. The (20) ______________ mountains on the moon are about 26,000 feet or 8.000 meters.

       And here is something verry interesting for you (21) ______________: on the moon, you weigh one sixth of what you weigh on the earth. If you weigh 50 kilos on the moon, you will weigh only a little more than 8 kilos. You will be able to jump very high, (22) ______________ higher than any high jump Olympic champions. You can take very long steps as well. And maybe you won’t sleep very well because one day on the moon lasts two weeks. So, is there life on the moon? I’ll leave the question for you to answer yourselves in the group discussion.

17. A. found               B. known                      C. brought                   D. learned

18. A. but                     B. because                  C. though                     D. while

19. A. temperature    B. climate                    C. weather                   D. heat

20. A. strongest           B. deepest                   C. highest                    D. tallest

21. A. knowing            B. known                      C. know                       D. to know

22. A. more                 B. only                         C. even                        D. very