| Safe Water for the
Future: Activities for Kids (http://www.ecn.purdue.edu/SafeWater/Kids)
Where Does Contamination Go?
Basic goal: To demonstrate conservation of mass, and contaminant movement.
Indiana Proficiencies and Competencies:
Middle/Junior High School 1.1, 3.2, 9.2;
First year Earth and Space Science 1.1,1.5, 6.2, 7.2;
Environmental Science, Advanced 1.1, 1.5, 2.1, 6.1 and 7.1.
Write down your observations.
Record your observations.
Did the food coloring enter the well? Describe whether it was diluted, and estimate how much dilution, if any has occurred.
Give a hypothesis of what has happened. How could you test this hypothesis?
Enhancing the Activity:
Repeat this activity using a deeper plastic cup and vary the depth from the surface of the rice to the water.
Describe why the depth to the water table can affect the risk of contamination to ground water.
Vary the materials in the cup and see what effect other materials have on the migration and/or adsorption of the food coloring. (some suggestions include beans or sand.)
How does this relate to contaminant migration or adsorption in ground water flowing through soils or rocks?
For more information contact Jane Frankenberger (firstname.lastname@example.org)
or Brent Ladd (email@example.com)
or call the Purdue Extension Safe Water office at 765-496-6331