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Coevolution: A Simulation
Students participate in a demonstration in which they must attempt to suck liquid from varying containers with straws of varying sizes. They discuss the concept of coevolution and see why this activity illustrate the coevolution of...
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Yeast Cells and their Environment
Students study the scientific method and explore how to design an experiment. In this investigative lesson students explore and hypothesis an experiment then carry it out to find the results.
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Water Ecology Lab
Students determine the characteristics of a stream ecosystem and its organisms. In this water ecology lesson students complete several labs that shows them presence of life, water appearance, and water flow.
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It's a Gas!
High schoolers explore the conditions under which hydrates form. They use the Internet to access information and conduct experiments to examine how the greenhouse effect works.
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Where in the World is Carbon Dixoide?
Students conduct experiments designed to detect the presence of CO2 by using a BTB that changes color (blue to yellow) in the presence of CO2. First, students experiment with the CO2 from combining vinegar and baking soda. In part two,...
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There's Always Room For Jell-O
Students explore the breakdown of proteins. They cut wells in Jell-O and observe as the detergent digests the Jell-O. Students record their observations and take measurements.
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Porosity and Permeability
Young scholars examine the concepts of porosity and permeability. They conduct experiments to determine the porosity and permeability of gravel, sand, and clay. After performing the experiments they collect and graph data, comparing...
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From Vibration to Sound
Students observe a series of demonstrations to illustrate wave movement. In this sound wave lesson, students witness how objects create waves when dropped in a dish of water, use a rope and slinky to produce transverse and longitudinal...
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Extract Your Own DNA from Cheek Cells
Students observe their own DNA. In this DNA instructional activity, students learn the simple method of DNA extraction and explain why DNA extraction is important to scientists.
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Wide Open Spaces
Students examine the problem of groundwater pollution. In groups, they develop a solution to solve the problem of a local polluted water source. They also practice measuring the space between sediment particles and the rate of water flow.
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DNA Transformation of Bacteria-Ampicillin
Students demonstrate how genes can be transferred from one bacteria to another. In this experiment, they take a plasmid with a gene for resistance to the antibiotic ampicillin which is used to transfer the resistance gene into a...
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Milk Makes Me Sick
Students experiment with lactase to find out how milk sugar is broken down in the body. For this enzyme lesson, students use glucose strips to investigate the breakdown of lactose into glucose and galactose for milk digestion in the...
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Pursuit of The Properties of Metals and Nonmetals
Students examine how every element is classified based on the physical and chemical properties. In this properties of metals lesson students divide into groups, complete a lab and finish a data sheet.
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Building a Bridge
Third graders discover architecture and functionality by constructing a bridge. In this bridge engineering lesson, 3rd graders utilize cardboard, straws, towel tubes and plastic bottles to create a model bridge similar to ones seen...
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Colorimetric Assay
Students review the basic lab techniques by following lab procedures. They analyze data by using raw data gathered. Students comprehend the processes occurring inside the column. They use specific chemicals to help determine the...
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Soil Composition: Then and Now
Students identify the location of their school from a 1926 digitized Soil Sample map. Using remaining landforms, they determine the type of soil identified during that time, and compare it to the soil currently found near the school.
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Plant Pigment Chemistry
Students discover the roles of pigments present in leaves. They extract and isolate pigments present in autumn leaves using a thin layer chromatography. Very nice lesson and lab!
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Growing Barley and Detecting the Presence of Amino Acids
Pupils produce the greatest mass of plant material possible for 100 seeds of barley, and detect amino acids in barley plant material. They develop rules for the investigation, conduct the experiment, and prepare a computer spreadsheet...
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Molecular Explorations
Students explain the processes for separating DNA from tissue and separating complex mixtures. In this exploratory lesson students complete a lab where they extract DNA.
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The Electric Sieve
High schoolers examine different mixtures and how they can be separated. In this electric sieve lesson students complete an activity that allows them to separate mixtures.
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Photosynthesis
Sixth graders are introduced to the process of photosynthesis by discussion and then by participating in an experiment. They then answer questions as independent practice project.
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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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Air: It's a Gas!
Young scholars investigate the properties of air through hands-on activities in conjunction with the demonstrations in a 3-2-1 Contact Video.
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Chemistry Lab: Solubility Product Constant of Sodium Chloride
In this solubility product constant of sodium chloride instructional activity, students gather the equipment needed and follow the procedures to determine the solubility product constant of a solute and demonstrate precipitation of a...