How to make a water filter with sand and charcoal (DIY experiment)

DIY Water Systems

It’s a fa­mil­iar sit­u­a­tion: you go camp­ing with friends, and you don’t have enough wa­ter. In this ex­per­i­ment, you’ll find out how to pu­ri­fy wa­ter from the near­est pond, You only need a plas­tic bot­tle, sand and a few burnt logs.

Credit MEL Science