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SciShow
Great Pacific Garbage Patch
Hank tells us about the enormous concentrations of plastic debris floating around in the Pacific Ocean, why they're there and why they're a problem.
Curated Video
Meat Display (What is an ounce? How many ounces are in a pound? In this video, you will learn about the customary units for measuring weight!)
To tell the difference between quantities or amounts we normally measure them using appropriate units.
Math Mammoth
Math Mammoth: Measuring Weight in Customary Units
A lesson on customary weight units from ounces to tons. Includes unit conversion problems and word problems. [8:05]