Puff: All About Air (A Science Pals Book) Pascale Bonenfant And in real life

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Puff: All About Air (A Science Pals Book) Pascale Bonenfant And in real lifeBreathe deep and prepare to sail like the wind, with the sweetest puff of air in all the atmospherepart of the Science Pals series, including Drop: An Adventure through the Water Cycle andRay: 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 lifehe's the air we breathe and the wind around