What Causes Tornadoes from youtube by The Science Bucket
featured video : Robert Bonow M.D. Answers, "What Causes the Aortic Valve to Become Too Tight?" (Aortic Stenosis)
featured video : What causes Surface Tension?
This is a Science Made Easy Video. A quick and fun cartoon lesson about tornadoes. Great for teachers and students- hope you guys enjoy! Be sure to subscribe if you like it, there will be more soon.