Curated OER
Determination of Water Hardness
Young scholars investigate water hardness. In this water hardness lesson plan, students determine the water hardness in 4 samples of water after buffering each. By using titration and an indicator, young scholars can determine the amount...
Curated OER
Why is the Ocean Salty?
In this ocean salt worksheet, students read about the processes that have lead to the salt content in the ocean. Then students complete 5 short answer questions.