SCIENCE star star star

# science

1 Though we still do not know what other forms of life inhabit the universe, we have more or less dispelled the idea that they will arrive on earth in .... !
2 Astronauts have to be very careful with their instruments ; they are so delicate that even the smallest .... could render them unusable.
3 To find out how much money Liz had spent during the month, her husband had to .... the receipts.
4 "That's the .... answer; good ! You're improving !"
5 .... are infinite ; one could count one's whole life and never reach the end !
+ 10 questions