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Showing results 641 to 660 of 2169
Trash Traits
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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.
Experiment with Fat
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In this nutrition/food science activity, learners conduct an experiment and record data to compare the amount of fat in different foods.
Toasty Wind
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In this quick activity, learners use a toaster to investigate the source for the Earth's wind. Learners hold a pinwheel above a toaster to discover that rising heat causes wind.
Under Pressure
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In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.
Construction Technologies: Construct the Strongest Bridge
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Learners work in pairs to create three simple types of bridges, a beam bridge, an arch bridge, and a suspension bridge.
Dinosaur Dig
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This is an activity about dinosaurs, fossils, and the work of paleontologists. Learners use hand tools (paint brushes, scoops, and sifters) to unearth fossil specimens in tubs of birdseed.
Air, It's Really There
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This lesson focuses on molecular motion in gases. Learners compare the mass of a basketball when it is deflated and after it has been inflated.
Over the Hill
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In this physics activity, learners construct a small-scale version of a classic carnival game.
Make a Terrarium
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In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.
Transit Tracks
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In this space science activity, learners explore transits and the conditions when a transit may be seen.
Corner Reflector
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In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.
Effects of Solar Radiation on Land and Sea
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In this activity, learners explore the different heating properties of soil and water.
Parasite Sleuth
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In this activity (on pages 26-33), learners play parasitologists, solving several "mysteries" about people who got sick from various parasites. In teams of four, each member solves one mystery.
DNA Fingerprinting
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In this forensics activity, learners solve a mystery using “DNA” taken from the scene of the crime.
Disappearing Statues
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.
Feeding Facilitation: A Lesson in Evolution and Sociobiology
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This is an outdoor activity designed to demonstrate evolution of feeding behavior in flocking, schooling or herding animals that maximizes allocation of food resources and enhances survival.
Bobbing Eyeballs
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In this activity, learners use simple materials and basic tools to construct a special toy to explore pendulums. As the head of the toy bobs one way, the eyeballs bob the other way.
Map Your World
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In this activity, learners map their world by drawing a plan of their bedroom.
Bird in the Cage
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
Endurance: How Many Can You Do in a Row?
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Combine math and exercise with this activity. Learners count how many times in a row they can skip rope or throw and catch a ball.