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Showing results 81 to 100 of 255
Evolution in Plane Sight
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In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.
For the Birds: Environmental Effects on Population
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In this activity, learners will investigate how shorebirds and seabirds are extremely vulnerable to changes in their environment, whether human-induced or otherwise.
Floating Candles
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In this chemistry activity, learners observe a combustion reaction and deduce the components necessary for the reaction to occur.
Visualizing How the Vestibular System Works
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In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the
Ziptop Bag Chemistry
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In this chemistry activity, learners perform three chemical reactions in a sealed zip-top bag. Learners will record their observations and classify the changes as chemical or physical.
Where Was That?
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In this activity (9th activity on the page), learners work in pairs to see how their perception of touch differs from reality.
Our Sense of Touch: Two-Point Discrimination
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In this activity, learners investigate the touch sensory system and discover how to plan and carry out their own experiments.
Our Sense of Sight: Eye Anatomy and Function
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In this activity, learners investigate the sense of sight and develop and conduct their own experiments.
Clam Hooping
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In this two-part outdoor activity, learners conduct a population census of squirting clams on a beach or mudflat, and investigate the clams' natural history.
Designer Seeds
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In this activity, learners will examine a variety of seeds, describe them, and determine how they are dispersed.
Chilean Sea Bass: Off the Menu
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In this data analysis activity, learners use data collected by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) to study Chilean sea bass populations.
Making Sense of Sensors
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In this activity, learners explore sensors and focus specifically on how to measure humidity using a sensor.
Equatorial Sundial
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In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the sundial.
Measuring the Wind
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In this activity, learners explore how anemometers work to record wind speeds and how the equipment has undergone engineering adaptations over time.
Moldy Jell-O
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In this laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds.
Earth Walk
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In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most textbook
Egg Bungee
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Learners attach an egg to a rubber-band bungee cord and drop the egg.
Edible Glass
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In this activity, learners discover the principles of edible glass by making a supersaturated sugar solution.
Mosquito Life Cycle
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In this activity, learners build a plastic emergence chamber (or use purchased "mini mosquito breeder") to observe and analyze the mosquito life cycle.
Tasty Buds
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In this activity (1st activity on the page), learners explore their sense of taste and the structure of the tongue by taste-testing various foods.