hot air balloons

Hot air balloons are cool. They use chemistry to help them stay afloat. They use hydrogen. Chemistry is also involved in making the fabric and keeping it durable so that it will not rip or anything. YAY! I never knew this until i read Justine's chem blog. http://justine-chem-5.tumblr.com/page/2. So ya.  




https://www.google.com/search?q=hot+air+balloons&safe=active&rlz=1C1KAFA_enUS512US512&espv=210&es_sm=93&source=lnms&tbm=isch&sa=X&ei=lNExU4KBLsbk0QGck4G4Cg&ved=0CAgQ_AUoAQ&biw=1248&bih=914#facrc=_&imgdii=_&imgrc=ACaLP7bilqmqUM%253A%3BuOOaPTJhIR4woM%3Bhttp%253A%252F%252Fimages.fineartamerica.com%252Fimages-medium-large%252Fowl-hot-air-balloon-bob-orsillo.jpg%3Bhttp%253A%252F%252Ffineartamerica.com%252Fart%252Fall%252Fhot%252Bair%252Bballoons%252Fcanvas%252Bprints%3B900%3B599
http://justine-chem-5.tumblr.com/page/2