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Analysis of Bleach
High schoolers analyze and compare laundry bleaches by testing their oxidizing powers. They conduct their lab experiment, compare/contrast their results with other students' work, and complete a worksheet.
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TE Activity: Yeast Cells Respire, Too (But Not Like Me and You)
Student observe and quantify the respiration that occurs in yeast-molasses cultures. They complete an effective experiment in order to examine how to think critically about the results.
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Digging up the Dirt on Soil Microbes
Students are introduced to the idea of soil as a habitat for many different organisms. They are introduced to the links between the biological adaptations of an organism and the physical demands of its habitat. Pupils are introduced to...
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Understanding the Nitrogen Cycle within the Aquarium
Students discuss ammonia, and ways it may get into the aquarium. They complete a worksheet about the Nitrogen Cycle. Students learn how to get the ammonia and nitrite out of their aquarium.
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Density and Convection Currents
Students listen as the teacher explains convection currents in the ocean. They experiment with finding a smoking match in the classroom with their eyes closed. Students discuss what might effect their ability to pinpoint the smoke...
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Human Impact on the Life Cycle of Corals
Students study the life cycle of a coral reef. They then participate in a simulated village meeting in which they roleplay various characters who must review proposed legislation dealing with reef management.
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Protein Assays: Bio Rad and Page Gels
Students conduct the Biuret Test and the Bio Rad Protein Assay. They examine the spectrophotometer and graph molecular weights and the concentrations of the proteins investigated. They prepare solutions for the Bio-Rad test and use the...
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Fun With Chemical Changes
Fifth graders observe and identify the differences between chemical and physical changes. In small groups they mix different substances together in glass beakers, and identify which had a chemical change, supporting their statements...
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Chemical Fun
Fifth graders observe and conduct a variety of experiments to differentiate between physical and chemical changes. They mix cabbage juice with different liquids and record their observations on a chart. Students write down their...
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Fizzy Pop
Fifth graders compare and identify variables that affect the rate of a chemical change using Alka-Seltzer, water, ice, and hot water. They time how long each variable takes to pop the canister into the air, and record the results on a...
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Elements Compounds and Mixtures
In this science worksheet, students apply science basic knowledge of chemistry to the puzzles that are listed for the four parts of the sheet while focusing upon the identification of a metalloid.
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The Caspian Sea
In this comprehension and geography activity, students read an article about the Caspian Sea, identifying where it is located and what countries surround it. Then they describe three parts of the sea, what are tributaries, and how many...
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Protein Coagulation or Denaturation
In this proteins worksheet, students compare the coagulation of egg whites and milk proteins and then complete 5 short answer questions. A protein coagulation quiz is also included with 5 multiple choice questions.
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IB.8 Laboratory Activity-Water Testing (Micro)
Learners test different water solutions for the presence of ions. For this water testing lesson plan, students test for iron, calcium, chloride and sulfate ions in solutions. They indicate positive tests based on their results and they...
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Complex Equilibria Quiz
In this equilibrium worksheet, students answer 8 multiple choice questions but need to solve the problems in order to determine the answers. They include determining the concentrations of ions as well as the pH of solutions.
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Equilibrium Practice Problems
In this equilibrium worksheet, students answer thirty multiple choice problems including topics such as pH, analyzing titration curves, calculating molar concentrations and working with equilibrium constants.
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Kinetics Practice I key
In this kinetics worksheet, students solve six problems mostly about reaction rates. Included is a problem where students calculate reaction rates of sucrose and water and plot the data of the reaction.
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Rate Laws Quiz
For this rate laws worksheet, students solve four problems. They determine rates of reactions, they determine which rate laws is used, they determine the overall reaction order and they identify the rate of appearance and disappearance...
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WS 10.10 Salts and Buffers
For this salts and buffers worksheet, students answer five questions about the acids and bases that form salts as well as the equations for a buffer system.
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Acids/Bases and Buffers
In this acids, bases and buffers worksheet, students define terms, solve problems such as calculating the pH of solutions and the molarity of solutions and they write balanced equations of neutralization reactions.
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Solutions, Suspensions, & Colloids Lab
In this solutions, suspension and colloid worksheet, students complete a lab experiment in order to determine if a given mixture is a solution, suspension or colloid. They are given six vials and they record their observations of each...
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What is a Chemical Reaction?-Evidence of Change
In this chemical reactions worksheet, students experiment with hydrochloric acid and copper (I) chloride to identify the types of reactions they undergo with various other substances. They also observe the law of conservation of mass and...
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Acids and Bases
In this acids and bases worksheet, students answer 18 questions about acids, bases, titrations, pH of solutions and the ions that make solutions acidic or basic.
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Cell Size and Division or How Big Would You Want To Be if You Were a Cell?
Students investigate why cells divide. In this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...