Curated OER
Surface to Volume Ratios
Young scholars 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...
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Osmosis
Fifth graders explore osmosis as they watch organisms divide. In this organism lesson, 5th graders use potatoes to experiment with the effects of salty water in the body. Students discuss what osmosis is and record what happens in...
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Cell (Biology)
Students conduct a series of activities to explore the nature of cells. In this biology lesson, students observe plant and animal cells under the microscope and compare them. They differentiate osmosis and diffusion.
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Mountain Barriers
Students examine geographical change. In this mountain barriers lesson, students conduct an experiment to discover how mountains affect surrounding land. Students draw conclusions on how change in land affects plant and animal life.
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Comparing Solids, Liquids, and Gases
In this solids, liquids and gases learning exercise, high schoolers observe a teacher demonstration about gases and they experiment with liquids to show diffusion, shape and volume. They answer nine questions about the experiments...
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Oxidative Rancidity in Potato Chips
In this oxidative rancidity worksheet, students conduct an experiment on potato chips. Students complete 4 short answer questions upon completing the experiment.
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Explore: Third Grade Scents
Students use the olfactory sense to determine if a marker is appropriate 'food' or not. This experience helps students explain why so many animals rely on the sense of smell to find prey.
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Stomata: Microscopic Openings that Let Plants Breathe
Learners participate in a lab experiment to observe and measure the opening and closing of stomata. They focus on photoperiod, locate and identify stomata on a leaf and explain the role of stomata in the daily functioning of a plant.
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Thermodynamics
Young scholars investigate energy involved for bonds to form and break. In this thermodynamics lesson plan, students experiment with chemical reactions to observe endothermic and exothermic reactions, they explore entropy and the effects...
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Mixing and Stirring
Students experience mixing through dancing. In this physical science lesson plan, students not only dance to show mixing but also demonstrate mixing and stirring by combining milk and chocolate milk.
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Osmosis and the Cell Membrane-part 2
Students participate in a review of diffusion and the basic properties of the cell membrane before exploring the process of osmosis in a lab activity. Using shell-less eggs that have soaked in various solutions, students make...
Colorado State University
Why Are Clouds White?
Is it possible to change the color of clouds? A three-part activity explores the scattering of light by the water droplets that make up clouds. After observing a demonstration, curious scholars conduct their own investigations of the...
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Reflection and Refraction
What is a prism? A place for light waves that commit minor refractions! The thorough resource includes three hands-on investigations covering light reflection and refraction; mirrors, lenses, and images; and optical systems. Subject...
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Molecules Rock
Fourth graders engage in this interactive lesson which illustrates diffusion and osmosis and shows them that molecules of life move dynamically and powerfully. They must analyze their lab orally and in writing.
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Cell physiology and chemistry
Students design an experiment to discriminate between chemical diffusion, osmosis, facilitated diffusion and active transport through a membrane. Be specific about predictions and interpretations!
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Why Are Cells So Small?
Students examine the relationship between cell surface area and the ability of materials to diffuse through a cell. They participate in an experiment in which they determine which materials diffuse easier than others. They complete...
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Language, Communication, and Successful Conflict Resolution
Students consider how communication skills may diffuse conflict. In this conflict resolution lesson, students play a word game and discuss how vocabulary may contribute to creating conflict of diffusing it.
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Lenses
Students explore vision by experimenting with lenses in equipment. In this optics instructional activity, students define the different technology that enhances vision such as microscopes, telescopes and cameras. Students experiment with...
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Exploring the Interstellar Medium
Pupils investigate the Interstellar Medium and the Local Bubble that the Sun is inside. They read and discuss a handout, answer discussion questions, observe a demonstration of light scattering, and conduct an experiment on the...
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Enhancing Uptake of Glucose in Rabbit Muscle Cells
Pupils observe diffusion of glucose through a cell membrane and research the function of chromium picolinate in glucose uptake into a cell. They conclude and understand the role of insulin and chromium picolinate in the uptake of...
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Photosynthetically Available Radiation (PAR) Measurements
Students calculate the amount of solar radiation hitting the ground at their school compared to the solar constant. They also repeat the experiment at a water testing site and utilize a light probe to measure the light being reflected...
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Barter Day
Fifth graders research bartering. In this bartering lesson, 5th graders investigate bartering as a way to trade for goods and services. Students experience bartering first hand while playing a game.
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science: Light Up the Ocean
learners investigate light levels under the ocean by conducting several simulations. After creating solutions representing seawater, they shine a light sensor on it to discover how light diffuses and is absorbed by the impurities in the...
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Geometrical Optics: Reflection and Refraction of Light
Students define and discus the concepts of wave fronts and rays. In groups, they distinguish between specular and diffuse reflections and use Snell's Law to predict the path of light rays. They calculate the speed of light through...