Water Filtration Unit Experiment

2 glass jars sand gravel 3 4 coffee filters dirty water a plastic cup with a hole cut in the bottom.

Water filtration unit experiment.

Notice how it looks and smells. Begin by getting a jar full of dirty water. Again notice how the water looks and smells. Once completed give each team 25 ml of the dirty water to begin to filter in their test tubes.

In this activity students are challenged to design and build a water filtration device using commonly available materials following the same design process used by the engineers and scientists who developed the international space station water recovery system for nasa. So many people get sick from their own drinking water. You will need a few supplies. The second glass will be dirty dirty the dirty water with materials found around the house.

How to do the water filtration experiment. To meet this challenge students use an iterative process as they build test and measure the performance of the filtration device analyze the data collected and use this information to work toward an improved. Put the lid on the bottle and shake vigorously for 30 seconds. To start ask the child to make a hypothesis or prediction about the experiment.

Once filtering is complete have them bring the test tubes to you for observation. The first glass will serve as the control. Pour two glasses of water from the kitchen faucet. We went to a little pond nearby to collect some water.

For this experiment it is best to test the water before and after the filtration. Pour the water into the bottle with its top cut off.