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Endosymbiosis: A Friend Within
Pupils research the ecological principle of symbiosis. Using a microscope, students observe the relationship of mutualism between termites and flagellates. Pupils examine a live termite and protozoans. They discuss the principles of...
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Colorimetric Determination of the Concentration of Blue Food Coloring in Sport Drinks
Seventh graders determine the amount of blue food coloring in sports drinks and plot the concentration and absorbance data. They summarize the data and determine why companies need to know the amount of chemicals in their products.
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Down the Drain
High schoolers explore what problems might occur if oxygen decreases in a body of water. They model what happens in a situation where decomposition is occurring. Students obtain, organize, graph, and interpret information. They i...
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Mixtures
Sixth graders experiment with mixtures. In this chemistry activity, 6th graders determine which mixtures are considered heterogeneous, a suspension, a solution or a colloid. Students create a data sheet of what they discover.
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Cell Division and Mitosis
Students identify each phase of mitosis and the main characteristics of each. Students prepare a microscope slide with onion root tip. Students observe the cell division occurring in the cells and label the mitosis phases observed.
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The Exceptional Nature of Cellulose
Students observe the affects of a substance's composition and structure have on its solubility. In this cellulose lesson students compare the amount of energy required to dissolve mono-saccharides with that required to dissolve...
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Electric Field Mapping in 3D
Students create a 3D vector field map of an electric field. In this physics activity, students measure the voltage inside an aquarium with water. They present their findings and map to class..
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DNA Isolation from Onion
Students apply measurement skills using the metric system. They explain the process of isolating DNA from other cell contents. They apply knowledge of cell structure to explain the process of isolating DNA.
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Effects of Nitrate and Phosphate Changes on the Growth of Algae
Learners determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.
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Microbial Spoilers: The Impact of Microorganisms on the Shelf-life of Milk
Pupils are inroduced to a commonly used microbial culturing technique. They explore the role of microorganisms in determining the shelf-life of food products.
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Transmission of Disease
Students provide names of viral diseases that they would possibly like to be infected with today; listing them on the Smart Board. They then come to an agreement about what virus to use and use beakers of fluids to simulate how viruses...
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Exploring With Photograms
Young scholars observe the interaction between energy absorbed, reflected or transmitted through an object in a photochemical process with a classroom demonstration.
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The Perils of Drinking Water
Learners determine the presence of drugs in water. In this chemistry lesson, students experiment on water samples using thin layer and column chromatography. They determine the concentration of drugs present using graphical analysis.
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Cloning of Plasmid and Spinach DNA
Students ligate fragments of genomic DNA from spinach into a vector plasmid. They perform a restriction enzyme digestion. Student use a ligated DNA molecule to transform E. coli cells. Students analyze their procedures and outcome of...
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The Cloning of Plasmid and Spinach DNA
Students will first extract genomic DNA from spinach and perform a restriction enzyme digestion on both the spinach DNA and the plasmid using the same restriction enzyme. They then ligate the cut plasmid DNA with the cut spinach DNA in...
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Organs to Go...
Students explain the principles of experimental design and reinforce the steps of the scientific method. Each group of students create a "slush" type mixture to store a chicken liver.
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What Effects Do Trees Have On The Environment?
Students examine the interrelationship between trees, soil and people focusing on urban areas. They collect and analyze data about trees in their research area.
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Isolation of Synthetic Chemicals from Plant Leaves
Students isolate and identify a dye, which represents a synthetic pesticide, from plants.
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Introduction to Gas Chromatography
Students analyze gas chromatograms and suggest various applications for gas chromatography.
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Mystery of the Eleven Unknown Substances
Fourth graders identify eleven white substances that are commonly found in the household. They, in pairs, perform experiments on a variety of substances, and must identify them based on the reactions they observe.
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Iron Filings
Students conduct an experiment in which a solution of copper(II) sulfate is added to iron filings. They write and balance the equation for the reaction that occurs and calculate the amount of iron that reacted and the percent yield of...
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Science: Testing Water for Toxicity
Students investigate the potential toxicity of water samples using California blackworms to test water quality. They observe the worms' behaviors in different water samples and determine which sample has the highest toxicity. At the...
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Determination of the percentage of Acetic Acid in Vinegar
Students determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore the...