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Use the 4 labs in this 360Storyline to lead students to explore the principles of green chemistry and recognize their importance in guiding the design of cleaner, safer and more efficient chemical processes and products.
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A 360Storyline is a collection of experiments that together let students engage in science in an authentic manner through the use of relevant phenomena. Each experiment in a 360Storyline builds on things learned in the preceding experiments until students develop a final, working explanation or model of the phenomenon. Every lab in any 360Storyline is completely editable and supported by videos and simulations.
Lead students to explore the principles of green chemistry and recognize their importance in guiding the design of cleaner, safer and more efficient chemical processes and products. They use low-toxicity chemicals, small-scale chemistry, recyclable materials and less hazardous lab practices to conduct “greener” versions of classic chemistry experiments.
What Students Do
Lab 1—Make the Chemistry Lab Greener
Students conduct greener versions of classic chemistry labs. They explore with the properties of hydrophobic and hydrophilic surfaces, a precipitation reaction and the use of a catalyst to increase the rate of a redox reaction.
Lab 2—Toxicity of Road Deicers
Students determine the effect of road deicers on the germination and growth of lettuce seeds. Specifically, they evaluate how the concentration of salts commonly used as deicing agents affects the sprouting and growth of lettuce and radish seeds. Based on their results, they argue whether the salts in these solutions are green choices for use as deicers.
Lab 3—How to Recycle Polylactic Acid Plastics
Students carry out an investigation to recycle cups made of polylactic acid (PLA) plastic via chemical depolymerization or heat treatment.
Lab 4—Green Chemistry Analysis of a Reaction
Students determine the mass percent of metal bicarbonate samples through thermal decomposition of the solids. They also calculate the atom economy of the reactions involved and, based on these values, decide and explain which compound would be the greener choice as a food additive that generates carbon dioxide gas when exposed to heat.
HS-ESS3-2: Evaluate competing design solutions for developing, managing, and utilizing energy and mineral resources based on cost-benefit ratios.
HS-ESS3-4: Evaluate or refine a technological solution that reduces impacts of human activities on natural systems.