Curated OER
Catalysts and Enzymes
Biochemists experiment with the oxothermic decomposition of hydrogen dioxide by adding manganese dioxide. They observe how pepsin enhances the action of acid on the digestion of egg white proteins. They use yeast to make bread rise. All...
K20 LEARN
Untwining And Intertwining: Chemical Reactions
What happened when the chemistry teacher told a bad joke? There was no reaction! A creative take on the traditional reaction types lesson invites learners to draw their own conclusions about how compounds and elements combine. Groups...
Virginia Department of Education
The Effects of Heat and Acid on the Enzyme Catalase
How quickly do enzymatic reactions occur? Assist the class as they examine heat and pH change to determine the rate of chemical reactions using catalase as an enzyme. Watch them "glow" with excitement!
Curated OER
De"compost"ition
Students develop an understanding of the decomposition process and the parameters which influence the rate at which it occurs.
Curated OER
Identifying and Explaining Reactions
Introduce high schoolers to chemical reactions with this series of activities. In a little over an hour, scientists observe four gas-producing reactions: the combination of hydrochloric acid and sodium hydroxide, placing pasta in...
Curated OER
What Causes Tooth Decay
Learners investigate oral hygiene. In this personal health instructional activity, students discover the parts of a tooth and how to best protect them from disease. Learners examine the effects of acids on tooth enamel and...
Curated OER
THe Decomposition of Water
High schoolers collaborate in an experiment where they decompose water into simpler substances through the process of electrolysis. They collect, measure, and observe data and then place the data into a table. Accomodations for...
Curated OER
pH Potential
Students experiment to determine the positive and negative impacts of human activities on environmental change. They examine how physical and biological processes such as decomposition affect soil characteristics while looking at the pH...
Curated OER
Weathering and Erosion
Students examine the similarities and differences between weathering and erosion. They participate in a lab in which they test the effects of different materials when exposed to weathering and erosion. They record their observations.
Curated OER
Catalase and Catalysis
Students explore enzyme catalysis through a series of experiments. In this chemistry lesson, students determine the factors affecting catalysis. They explain the different uses of this process.
Curated OER
Look At What Nature Has Done!
Students examine how easy it is to break rock. They investigate weathering and erosion in a number of activities.
Curated OER
Biochemical Cycles: Recycling Carbon and Nitrogen
Students construct flow diagrams of the carbon and nitrogen cycle processes. They identify sequences in each cycle that are affected by human impact and present their research to the class.
Curated OER
Water Purification
Young scholars develop an understanding and appreciation of water purification techniques and their implications for health maintenance.
Curated OER
Carnivorous Plants: A Bugs Nightmare!
Students research carnivorous plants and how they trap insects. They role play as botanists to write a research field guide about a newly discovered imaginary carnivorous plant.
Curated OER
Code Makers - Electron Configuration, Aufbau Principle
Learners write the electron configuration of elements using the Aufbau principle. In this chemistry lesson, students build their own key that demonstrates the principle.
Science Education Resource Center at Carleton College
Serc: Making Hydrogen Gas From a Decomposition Reaction
A very simple reaction of acid (HCl) and metal (magnesium) to produce Hydrogen gas and metal salt will provide the volume of gas to evaluate. Learners will determine the amount of gas produced at room conditions and then using the...