Curated OER
Leaf Stomata as Bioindicators of Environmental Change
Students, in this experiment, collect leaves from two species of trees and the stomatal index on the upper and lower epidermis of each leaf be determined.
Curated OER
Leaf Stomata as Bioindicators of Environmental Change
Students perform an experiment to determine the stomaltal index on the upper and lower epidermis of two species of leaves. Stomatal densities change in response to changing atmospheric levels of carbon dioxide and to annual rainfall.
Curated OER
Enzyme Grabbers
Students perform two experiments to show the properties of enzymes. They use pectinase to produce apple juice from applesauce to show enzyme action and then taste the difference between raw and boiled papaya seeds as evidence of enzyme...
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Mendelian and Non-Mendelian Heredity
Tenth graders discuss their physical features, and why they look the way they do. They listen as the teacher discusses DNA, alleles, and dominant or recessive genes. Students perform an experiment with different colored markers...
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TE Activity: Super Spinners!
Students make spinners to investigate rotational inertia, rotational speed, angular momentum, and velocity. They make two sets of spinners that have different mass distributions and shapes. They complete a worksheet while experimenting...
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TESI 04 Lesson Plan
Students write and balance five chemcial equations which have been observed throughout the process of completing the experiment. They use vacuum filtration to recover suspeneded particals from a colloidal suspension. Students correctly...
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Change It
Fourth graders expand their knowledge about how the physical properties of a substances can be changed. They are given multiple opportunities, using first-hand experiences and familiar objects in different contexts, to identify...
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Slow Rot or Not?
Fifth graders examine how environmental factors affect decomposition. In this decomposition lesson plan, 5th graders experiment with the decomposition of grapes in five different environmental settings. They look at images of items that...
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Flight Dreams - Flight Factors
Students investigate the physics of flight by experimenting in class. In this history of flight instructional activity, students define terms such as gravity, lift, and drag in order to better understand how a plane is able to stay in...
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Flight Dreams - The Pressure on Parachutes
Students investigate air pressure by researching parachutes. In this physics lesson plan, students participate in three separate experiments utilizing air pressure and paper products to test theories on parachutes. Students record the...
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Sunlight and Warm Air
Students examine the different ways heat can be felt. In this radiation and conduction lesson, students recognize that the sun radiates heat. Students conduct three experiments to find how the sun warms the Earth and how that heat is...
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Surface to Volume Ratios
Students measure the rate of diffusion and to calculate the surface area to volume ratios of varying cell sizes. The lesson plan is very clearly organized with a useful student worksheet provided. They perform a lab experiment which is...
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Chemical Sleuthing
Students engage in a lesson which includes flame tests and the construction of a simple diffraction spectrograph with which to measure sodium ion emissions. They use the Bragg equation to compute the wavelength of the line spectra produced.
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The Effects of Temperature Variations on the Heartbeat Rate of Daphnia
Young scholars use DigiScope technology to investigate Daphinia, popularly known as water fleas. They design, conduct, and report on an experiment to determine the effects of varying water temperatures on the heartbeat rate of Daphnia.
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Ear Gongs
Students create ear gongs and experiment with the sounds they make. In this ear gongs activity, students understand the path of sound. Students experiment with a coat hanger to cause vibrations.
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What is Lightning?
Students experiment with electricity to understand lightning. In this lightning lesson, students show how static electricity causes lightning. Students discuss questions about their experiment and gather important facts. Students...
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What Do Plants Need?
Learners experiment with plants. In this plant lesson, students research the needs of plants. Learners determine if all plants have the same requirements for growth. In small groups, students experiment with different plants.
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Modeling the Big Bang and the Formation of the Universe
Sixth graders conduct an experiment to understand the Big Bang Theory. In this Big Bang Theory lesson, 6th graders will observe a balloon with confetti popping to emulate and analyze information related tot he Big Bang theory. Students...
Pennsylvania Department of Education
Light the Bulb!
Third graders investigate electrical circuits and how light bulbs are powered. In this electricity and power activity, 3rd graders study the vocabulary necessary which includes the different types of circuits, electrical currents, and...
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Adventures in Electrical Engineering
Learners explore electricity by conducting a series of experiments. In this physics activity, students discover the relationship between current, voltage and resistance. They calculate voltage and power in a given system.
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Earth Movers and Shakers
Students explore how the centuries-old invention of the lever led to today's applications in mobiles and crowbars. They watch a video on the lever, then utilize worksheets imbedded in this plan to guide their experiments.
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The Selection and Variation in the Egyptian Origami Bird
Learners participate in a contrived natural selection simulation in which they build and modify simple paper airplanes. They study divergent and convergent evolution and how it is isolated in sub-populations.
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Galileo: His Times & Beliefs
Students study Galileo and his scientific discoveries. They complete a series of experiments/model constructions, using 17th century equipment and procedures, to "recreate," demonstrate and explore the various discoveries of Galileo.
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Alka-Seltzer Cannons
Fourth graders observe what is happening when an Alka-Seltzer tablet is placed in a clear cup of water. They observe the release of carbon dioxide gas. Pupils answer the question of how much as is released by observing the experiment...