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Chemical Stoichiometry Problems
In this stoichiometry worksheet, learners calculate theoretical yield and percent yield. This worksheet has 2 problems to solve.
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Activity #6 How Fast Do Reactions Go?
Students name the factors (concentration, temperature, and a catalyst) which can affect the rate of a chemical reaction. They use their knowledge of particle theory to explain their observations. Pupils comprehend that the...
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The Right Chemistry
Students see that chemistry is the study of matter, how matter reacts and combines to create new chemicals, the changes that take place in matter and what makes up matter. This lesson provides many good ideas across the curriculum to...
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Poster Assignment: Sports Chemistry
Tenth graders distinguish between chemical and physical properties and changes in matter when given specific examples. They view a video of sports activities. Students chose their favorite sport and design an experiment to improve sports...
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Bubble and Squeak
Students complete a unit on the chemical and technological processes of food preparation. They observe various experiments, describe changes in materials through cooking, identify safety and hygiene issues, and cook various recipes.
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Activity #19 Oxygen For Yeast
Students observe and record what occurs when yeast is added to hydrogen peroxide. They indicate why a chemical reaction (decompostion) must have occurred during the experiement. Pupils explain why yeast was used. Students comprehend the...
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A Limnology Study of Drainage Ditches
Learners chemically test water, observe microscopic organisms in the classroom, and screen the sample for macroinvertebrates. They design a reporting sheet that list all the items to be tested and a space to record the results.
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Measuring pH
Students perform an experiment which will illustrate how to measure the approximate pH of chemicals in water using a pH indicator. They understand that a pH indicator is a chemical that changes color when it comes in contact with acids...
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Amylase Enzyme In Saliva
Students test for amaylase enzyme in a variety of substances. Student pairs perform a series of tests to determine how long it takes the starch sample to change to sugar molecules and the blue color to disappear when various saliva...
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Natural Indicators: How Do They Work?
Students describe characteristics and common uses of acids and bases. They describe the role of natural indicators in the chemistry of acids and bases after testing and making observations on a variety of plant extracts. Students observe...
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It's in the Bag!
Eighth graders measure temperature changes and make drawings of the interactions between matter and energy. By measuring the temperature students can conclude if there are changes in levels of energy.
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From One End to the Other
Seventh graders become more familiar with how our food is broken down mechanically and chemically. They also trace the food through the alimentary canal.
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Shake, Rattle and Roll
Young scholars compare the weathering of materials. in this weathering lesson, students experiment with the chemical and physical weathering of different materials. Young scholars use salt and water as an example of how weathering occurs.
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How Can We Calculate an Equilibrium Constant?
Young scholars explain how equilibrium quantities are changed by temperature, pressure or different concentration of substances. They work together to complete equilibrium equations. They identify the relationship between absorption of...
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Le Chatelier's Principle
In this chemical equilibrium worksheet, students review Le Chatelier's Principle and predict the direction of equilibrium shift for different changes to a chemical reactions. Students also review enthalpy and entropy. This worksheet has...
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Plop! Plop! Fizz! Fizz!
Fourth graders study physical and chemical weathering. They explain how the processes of weathering and erosion change and move materials that become soil. They create a K-W-L chart to show what they know and list what else they would...
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Thermochemistry
In this thermochemistry worksheet, students calculate the enthalpy of vaporization as well as the write the thermochemical expression for the production of the chemical reaction.
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Ozone
Learners locate the ozone layer of the atmosphere. They explain natural formation of ozone. They list chemicals that react with ozone. They explain how CFC's destroy ozone.
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Bellwork for Week 11
In this bellwork worksheet, students answer questions about chemical and mechanical weathering, particle size, and the soil profile at the start of class.
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Biodiesel Combustion and Its Influences in NOx Emissions
Tenth graders evaluate the physical mechanisms that cause a change in NOx emissions. In this combustion lesson plan, 10th graders participate in a research project. Students create a presentation of their findings.
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Where Does the Green Go?
Students investigate why green leaves change colors in the fall. They press leaves and write a poem, create a chlorophyll leaf print, take a nature walk, and create a leaf shape poster.
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Its Getting Thinner and Thinner
Students design posters on the ozone to be judged. They design a board game on the depletion of the ozone and list the layers of the atmosphere. They construct a collage of the atmosphere into layers according to the way temperature...
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A Drug Encounter
Children discover with parent supervision, places where medications are stored and identify any chemical substances that are taken to change how one's body or mind works. Child discusses with parent differences between medicine and...
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Structure-Property Relationships
Students explore the structure and property changes of water through videos and classroom discussion. They are introduced to atomic arrangement of solids by looking closely at carbon in different forms, such as graphite and diamond....
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