NEEM - A Tree For Solving Global Problems-English
Neem has worldwide medicinal and agricultural applications as a non-toxic alternative to synthetic chemicals for both curing and preventing disease
Neem has worldwide medicinal and agricultural applications as a non-toxic alternative to synthetic chemicals for both curing and preventing disease
4m:48s
11513
Vanishing Styrofoam Head - Cool Science Experiment - English
You won't believe your eyes when you see what happens to ordinary packing peanuts when they come in contact with a solvent called acetone. They...
You won't believe your eyes when you see what happens to ordinary packing peanuts when they come in contact with a solvent called acetone. They seem to magically "disappear." In fact, the Styrofoam reacts with the solvent to reveal the fact that Styrofoam is made up of long strands of styrene molecules with lots of air pockets. This demonstration also reminds us about the importance of reducing our use of Styrofoam and replacing it with more Earth-friendly packing materials.
3m:7s
5276
Acid Breath - Cool Science Experiment - English
You've heard of bad breath... how about acid breath? Steve Spangler shares some chemical magic you can whip up in your own kitchen
You've heard of bad breath... how about acid breath? Steve Spangler shares some chemical magic you can whip up in your own kitchen
3m:13s
5887