Do You Know?

1. How and why do chameleons change colour?
2. When you yawn, why do your eyes water?
3. If solar panels were put in space, how could the energy produced be sent back to earth?
4. If we could make all mosquitoes to be of one sex, we can solve the mosquito menace, can't we ?
5. When lightning hits the sea or a lake, do any fish get electrocuted?
6. Do tears run down one's face at the same speed as normal water?