Sure a lot of kids want to grow up to be astronauts, but according to scientist Glenn Murphy, even more kids want to know what happens to astronaut farts. (Short answer: Not good things!) And they want to know: Why don't all fish die from lightening storms? Why haven't we all been sucked into a black hole? Do animals talk? Told in a back-and-forth conversational style, "Why is Snot Green?" presents science just the way kids want to learn it--with lots of laughter.

Includes index.