Cornell University
Discovering Enzymes
Explore the function of enzymes through a series of lab investigations. Learners use household enzymes such as hydrogen peroxide to model the role of enzymes. The enzymes break down proteins with and without a catalyst.
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Activity #8 Which State Are You In?
Young scholars define, give similarites and differences between solids, liquids, and gases. They compare and contrast a solid, liquid and gas in terms of shape, volume, compressibility, diffusion and density. Pupils classigy common...
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What Changes Occur When Ice Melts?
Young scholars explore the physical process of melting. They observe melting ice and answer questions related to energy transfer during phase changes.
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How Can We Determine the Concentration of an Unknown Solution?
Students participate in experiments to help them determine the concentration of an unknown solution. They graph a standard curve and plotting the relationship between the concentration and the amount of light needed. They discuss their...
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Thin-layer chromatography
Students produce chromatograms of various vegetable extracts and standards. Using a flat bed scanner, they create a database of the results.
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Periodic Table of the Elements
First graders discuss, at their level, the concept of elements making up all matter. They discover the story of Dimitri Mendeleev and his discovery of the Periodic Table of the Elements. They locate and color some of the most common...
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The Basics of Biochemistry
Science teachers can introduce basic chemical concepts to biology students.
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Are You a Trend Setter?
Students are introduced to the periodic table of elements. They devise and perform and experiment in which they determine the density of specific elements. They use their results to predict the density of other elements in the same group.
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Lipid Worksheet
For this lipid worksheet, students answer questions about the structure and functions of lipids. They read about the three main lipids in the body including triglycerides, phospholipids and cholesterol and answer questions about each.
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Capillary Action and Adhesion
Students perform classroom experiments to observe adhesion. They perform a second experiment using sand, salt, water, and a heat lamp to observe the principle of capillary action. They also experiment with adhesion in plants.
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Solid, Liquid or Gas?
Students explore solid, liquids, and gases. In this science lesson plan, students distinguish similarities and differences of matter and recognize that different states of matter may appear in one substance.
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Conservation During Chemical Reactions
In this chemical reaction worksheet, learners are given the details of an experiment where sodium chloride and silver nitrate are mixed in a chemical reaction. Students answer nine questions about the chemical reaction, they determine...
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Acid Stomach
Students develop an understanding of how aspirin works and how understanding it's interaction with other chemicals in the body aided doctors in medical research. They complete a lab that compares the reaction of regular aspirin and...
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What do Chemists See When they Look at Chemicals?
In this chemicals worksheet, students answer 15 multiple choice questions about chemicals, compounds, inorganic and organic molecules.
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Growing Barley for Use in Biosynthesis Experiments
Students attempt to determine the optimum growing conditions for barley. They assess the effects of a number of substances such as ammonium chloride and urea on the plants
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Somethin' Sweet
Students make their own candy. In this science lesson plan, students observe how molecules interact with each other in physical changes and observe how the addition of heat can cause molecules to interact and form new molecules in...
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Start at the Very Beginning
Students explore ocean ecosystems. In this cross curriculum art and oceans lesson, students create a collage featuring three-finger algae using sand paper, tissue paper, and construction paper.
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Lotic Environment Lesson Plans
Pupils create and conduct experiments on a "classroom river habitat." They manipulate the biotic and abiotic factors so that they are able to compare an artificially prepared river model to a naturally occurring lotic ecosystem.
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A Compound Problem
In this compounds instructional activity, students compare the differences between compounds and mixtures. This instructional activity has 3 short answer questions.
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Adventures With Super-Absorbers and Substance Solubility
Students understand the concepts of absorption, swellability and solubility and recognize that science is all around us in our everyday lives and is fun to explore.
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Acid, Base, or Salt?
In this acids and bases worksheet, students read about the differences between acids and bases and then complete a table comparing the characteristics of both. Then students determine if the given statements describe an acid, base, or...
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Changes of State
Students examine molecules and the changes in energy of a system. In this energy systems lesson students complete a lab activity and describe changes of state.
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Elements, Compounds, and Mixtures
For this matter worksheet, students review the three forms of matter by reading a poem and completing 1 matching and 5 short answer questions.
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Elements And Atoms
Students investigate the concept of elements and atoms. They conduct research using a variety of resources and use the information in order to create a class presentation. The instructional activity includes specific dialogue and steps...