Cleaning up massive oil spills in Earth’s oceans, lakes and rivers is a big problem. Try cleaning up a tiny oil spill by testing materials like sand, paper towels, dryer lint and grass. Which work best? Rate them online, and learn what results other experimenters got.
Related Activites from How To Smile
Try out the related activities listed below from 24/7 Science and other sources. Be sure to visit Howtosmile.org to find even more science and math activities on the web!