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- Grade Range
- 5th - 8th
- Rating
Students conduct various labs to experiment with physical and chemical reactions. They also consider the 4 ways in which a reaction can be sped up (concentration, surface area, temperature and catalysts.) students conduct experiments on each method. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students explain the rate determining step, the dependence of total rate on the rate determining step and the effect of a catalyst on rate. Full Review »
- Grade Range
- 10th - 11th
- Rating
Students experiment with the decomposition of hydrogen dioxide by adding manganese dioxide. They observe other catalysts and their effects on chemical reactions such as yeast in fermentation in this series of lessons. Full Review »
- Grade Range
- 6th
- Rating
Students examine the work of artist Chuck Close. They create their own image using markers that show a range of values. They develop a grid to replicate those values. Full Review »
- Grade Range
- 7th
- Rating
Students examine the life of artist Chuck Close. They use markers to create an image to show a range of values. They develop a grid to represent these values. Full Review »
- Grade Range
- 8th - 10th
- Rating
Students work in groups to stuff as many envelopes as they can in 3-5 minutes. They use an assembly line method. Envelope stuffing is compared to a chemical reactions. The idea of catalyst is considered, and students determine a way to speed up their envelop stuffing simulation. Full Review »
- Grade Range
- 10th - 12th
- Rating
Students identify how factors such as temperature, concentration, and surface area can affect the rate of a chemical reaction. They use the collision model to explain changes in chemical reaction rates. Students discuss how a catalyst is a substance that changes the rate of a chemical reaction but is not changed in the reaction. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students discuss the functioning of the digestive system and the specific enzymes present. They observe the action of amylase on starch to identify characteristics of enzymes then perform an experiment on the effects of temperature on catalase enzyme. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students determine that the rate of reaction is affected by temperature, surface area, concentration of reagent, and addition of a catalyst or inhibitor. They observe that on December 3rd, 1984, 8000 people died when the chemical plant in Bhopal blew up. Full Review »
- Grade Range
- 12th
- Rating
Students identify and discuss enzymes using a series of key words (substrate, enzyme-substrate complex, lock and key, catalyst). Students identify key science concepts, such as cause and effect and predictability, utilizing the processes of science and interpreting data. Students apply simple mathematical concepts when graphing and develop critical and creative thinking skills. Full Review »
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