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Showing results 1621 to 1640 of 2375
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Accommodating Accommodation
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In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.
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Make a Comet Model and Eat It!
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In this activity, learners build models of comets, using edible materials, to learn about comets' structure.
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Shifting Backgrounds, Shifting Images
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In this quick activity/demonstration (5th on the page), learners explore depth perception.
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Have Your DNA and Eat It Too
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In this activity, learners build edible models of DNA, while learning basic DNA structure and the rules of base pairing.
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Soda Brand vs. Height Experiment: Soda Geyser Series #4
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In this activity, learners conduct a controlled experiment to examine which brand of soda makes the best (highest) soda geyser.
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Hunger Signals
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This game explores the different reasons we choose to eat, and helps us be aware of when our body needs food and when it does not.
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Cleaning Air with Balloons
Learners observe a simple balloon model of an electrostatic precipitator. These devices are used for pollutant recovery in cleaning industrial air pollution.
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Metric Capers
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In this outdoor activity, learners measure familiar objects in nature to practice working with the metric system.
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Gross Growth
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In this activity, learners grow germs collected from their hands and other objects. They cultivate the germs on a growth medium (such as slices of grapefruit or processed cheese) for a week.
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Model Eardrum
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In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.
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The Incredible Journey
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In this weather activity (page 4 of the PDF), learners will explore the water cycle through an interactive game.
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Smell Match
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In this matching activity (3rd activity on the page), learners use their sense of smell to match pairs of opaque containers filled with various smelly items like orange peel, roses, or moth balls.
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Sugar/Salt Crystals
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In this chemistry activity (page 1 of the PDF), learners will observe a physical change.
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Bendy Bones
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In this activity (on pages 19-24 of PDF), learners soak chicken bones or eggshells in vinegar for several days.
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Cave in a Cup
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In this activity (page 2 of PDF under GPS: Cave Swallows Activity), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then
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Sticklers
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In this outdoor simulation game, learners search for pretend animals called "sticklers" to determine and map where they live (habitat) and how spread out they are in that area (distribution).
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Static Cling
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In this activity, learners investigate static electricity using everyday objects at four different stations.
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Blimp Jet Challenge
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In this design challenge activity, learners add a jet-propulsion system (i.e. a balloon) to a blimp so it flies straight and far under its own power.
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Melts in Your Bag, Not in Your Hand
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In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.
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Exploring Properties: Surface Area
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This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.