Curated OER
Physiological Adaptations
Students investigate the concepts of genetics and how it is tied to the variations found within different species and how it is tied to adaptations. They review the theory of evolution and factors found to help create variation. The...
Curated OER
Effects of pH on Organic Molecules
Young scholars investigate the effects of an acid and a base on the structure of milk protein. They observe the changes to droplets of milk when adding ammonia and lemon juice and relate the changes to old, curdled milk. An extension...
Curated OER
Constructing a Phylogenetic Tree Using DNA Sequence Data
Students analyze DNA sequence differences between organisms in order to establish a reasonable picture of the evolutionary relationships between them. They take the role of molecular biologists and make genetic changes and constructing...
Cornell University
Extracting DNA
Uncover the basics of DNA structure through exploration activities. Collaborative groups build DNA models and recreate the process of replication. Then, using plant cells such as peas or strawberries, they extract a DNA sample.
Curated OER
Polymers
Students explore online tutorial on polymers. In this chemistry lesson, they create two polymers in the lab and compare their properties. They write a sales letter about their new and improved polymer product.
Curated OER
Respiration
This series opens with diagrams of experimental setups. A data table is displayed and questions are asked, indicating that the intent is for lab groups to perform the depicted experiments. At slide twelve, a coherent lesson about the...
Curated OER
Classroom Aquaponics: Exploring Nitrogen Cycling in a Closed System
Students investigate nutrient cycling in a simplified desktop ecosystem involving aquarium and hydro-ponically grown plants. They set up an aquarium with 10 gallons of water at least a week before the lab is planned and place...
Curated OER
Semipermeable Membranes and Bioaccumulation
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
Curated OER
The Cytochrome-C Lab
Students examine a method biologists use to try to determine relationships. They examine how amino acid sequences have been determined for a number of proteins, and how scientists can make inferences about DNA based on the amino acid...
Curated OER
Sedimentation Lab Activity
Students predict how sediments in a water column will settle. In this earth science lesson, students examine the layers of sedimentation. Students are given sediments to place into a column of water and observe how they settle....
Curated OER
How Do I Get a Pure Sample of the Molecules I Make?
Students initially engage in online research and consult print materials to identify a compound to produce. Once a selection has been made, individually, students conduct lab experiments to isolate substances. The end product is a...
Curated OER
Constructing a Phylogenetic Tree
Students are given the opportunity to analyze DNA sequence differences between organisms in order to establish a reasonable picture of the evolutionary relationships between them (Phylogenetic Tree). In the simulation form they are...
Curated OER
Denaturing Proteins
Students investigate how to denature proteins. In this denaturing protein lesson plan, students explore the different ways to denature proteins in the lab. They use heat, acids and bases, organic compounds and heavy metals to denature...
Curated OER
Survival Still
Lead your class to construct a solar still on campus to demonstrate how water can be extracted from the soil. The power of solar energy is emphasized, as is the concept of how capillary water can be recovered and purified by using a...
Curated OER
Acids and Bases-pH Experiment
In this chemistry lab worksheet, student use pH paper to test the pH of common household items. After collecting and charting their data, they complete 12 follow-up questions.
Chicago Botanic Garden
Are All Plants Created Equal?
Photosynthesis requires energy and produces food, and cellular respiration produces energy and requires food. An interesting lesson plan analyzes the factors that affect the rates of photosynthesis and respiration. Classes spend one day...
Curated OER
Which Wrap Is Wrapped Right?
Students investigate the integrity and strength of different types of food wraps. They test the wraps and create a graphic organizer for the data. Once it is organized then a lab report can be written. The instructional activity contains...
Curated OER
Using Abiotic and Biotic Parameters to Monitor Air Quality
Learners identify the abiotic factors that influence a river or stream and the organisms that live in it. They measure several abiotic and biotic parameters to gauge water quality. Students examine the biotic environment by identifying...
Curated OER
Animals of the Fire Ice
Students examine ocean life by identifying methane hydrates. In this ocean life lesson, students research organisms that live in the coldest, deepest parts of the ocean and live off methane hydrates. Students create a group...
Curated OER
Dust in the Wind; Chemicals in the Water
Students explore mechanical and chemical weathering at stations. They articulate some mechanisms of chemical and mechanical weathering through exploration in a lab. Students stations describe how chemical weathering differs from...
Curated OER
Surface to Volume Ratios
High schoolers measure the rate of diffusion and to calculate the surface area to volume ratios of varying cell sizes. The lesson is very clearly organized with a useful student worksheet provided. They perform a lab experiment which is...
Cornell University
Glued into Science—Classifying Polymers
Explore the unique characteristics of polymers. A complete lesson begins with a presentation introducing polymers. Following the presentation, young scientists develop a laboratory plan for creating substances using polymers. They test...
National Nanotechnology Infrastructure Network
Synthesis and Characterization of CdSe Quantum Dots
Does the size of a sample change the physical properties of that substance? It turns out it can! Young scientists combine physics and chemistry to synthesize CdSe quantum dots and record their color properties. Learners should notice a...
Curated OER
What the Sun Can Do
Students develop and test a unique, personally-relevant hypothesis about the consequences of exposure to UV radiation based units on a living organism, common baker's yeast (Saccharomyces cerevisiae).