Puff: All About Air

Breathe deep and prepare to sail like the wind, with the sweetest puff of air in all the atmosphere—part of the Science Pals series, including Drop: An Adventure through the Water Cycle and Ray: How Light Works

Look who just blew in! Meet Puff. He's air. And he's a gas! Puff has been here for billions of years, forming a blanket of protection around Earth to hold in heat and keep out cold. Puff is key to life—he's the air we breathe and the wind around us. And he's got talent! Have you ever ...