Students will develop a knowledge of the processes performed at a water treatment plant and understand the reasons for each process. They will perform, on a small-scale, several of the procedures that occur in a water treatment plant on “polluted” water. They will examine the changes in the water after each treatment step is performed. They will also observe physical characteristics of water, such as clarity, color, odor, and how they are affected from the beginning of the treatment process until the end.
This kit contains enough material for 5 groups. Teacher’s Manual and Student Study Guide copymasters are included.
Aligned to the Next Generation Science Standards (NGSS)*
Disciplinary Core Ideas: PS1.A; PS1.B
Performance Expectations: MS-PS1-2; HS-PS1-3
Cross Cutting Concepts: Patterns
Engineering Practices: Analyzing and Interpreting Data; Planning and Carrying Out Investigations
500g Fine Sand
500g Coarse Sand
500g Fine Gravel
100g Activated Charcoal
10g Potassium Aluminum Sulfate (Alum)
10g Calcium Oxide (Lime)
5g Kaolin (Clay) Powder
2mL Green Food Coloring
10mL White Vinegar
25 Plastic Cups
5 Stirring Sticks
*”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.
WARNING: This product can expose you to chemicals including Respirable crystalline silica, which is known to the State of California to cause cancer. For more information go to http://www.P65Warnings.ca.gov