The flow of knowledge in the study of water
Kelly Staley, 7th grade science teacher at Clear Fork Middle School, shares how she's using what she learned at the summer 2-day Feed the World workshop sponsored by Ohio Corn & Wheat:
My students begin this unit by studying the properties of water. They perform tests examining cohesion, adhesion, specific heat, and the pH of different sources of water. The students enjoyed the opportunity to choose from four different labs, and it was a great way for them to understand the scientific method and learn through hands-on activities. Students performed pH tests on tap water, used celery to observe the cohesion property of water, and tested the difference between salt and fresh water cohesion properties.
Next students studied the water cycle and how water flows. Maps were used to show drainage patterns and watersheds that contribute to the cycling of water.
The third part of the unit uses the water quality test from Feed the World to check for dissolved oxygen, pH, nitrate levels, and phosphate level, along with temperature. Students brought in samples of water to perform these tests.
The materials supplied by the Feed the World workshop are amazing and very helpful in the classroom. The testing kits provided by Feed the World workshop are excellent resources that allow students to perform real scientific testing in the classroom.
In the spring, 7th graders will participate in a stream study at outdoor school that was modeled at the Feed the World workshop. Students at Clear Fork Middle School also learn about careers that center around water and other agricultural aspects. Special thanks to Ohio Corn & Wheat, the Feed the World workshop and information provided on the FTW website!