"Have you ever stopped to think about all the stuff you encounter every day? There's the stuff you breathe, the stuff you eat, the stuff you wear, the stuff you read, the stuff you walk on, the stuff you ride in, the stuff your body is made of... plus water, trees, sunlight, soap, electricity, vaccines, smartphones, and so much more! In The Greatest Stuff on Earth, Steve Tomecek and John Devolle show us how this stuff works, including the miracle of transforming energy into matter and matter into energy. Stars do it...and also internal combustion engines...and living things, including grass and bacteria and worms and cheetahs and even us humans."--