Purpose: To observe how impurities are filtered out of water.
water filtration bottles
250 ml graduated cylinder
Measure 250 ml of polluted water and pour into each bottle.
Observe the water that flows out of the bottles for cleanliness.
Record observations below using the key provided.
make a chart with three columns and two rows
0 not clean
+ pollutants very apparent
++ pollutants somewhat apparent
+++ pollutants barely apparent
++++ no pollutants visible
|Bottle #1||Bottle #2||Bottle #3|
Answer the following questions based on your results.
4-6 Watershed Curriculum