March 11, 2016

Engineering Water Filters

As part of our Earth Science Unit we have been studying the water cycle and the problem of water pollution. Today we designed water filter prototypes and tested them with "contaminated" mystery water. We built the filters using wire screen, tulle, pea sized gravel, sand, coffee filters and cotton balls. We rated our samples on cost, time, clarity, color and particle size. Thank you so much to all the parents who donated materials!

No comments:

Post a Comment