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Showing results 21 to 40 of 395
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Electroplating
Source Institutions
In this electrochemistry activity, learners will explore two examples of electroplating.
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Incredible Shrinking Shapes
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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.
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Spherical Reflections
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In this art meets science activity, learners pack silver, ball-shaped ornaments in a single layer in a box to create an array of spherical reflectors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-534.png?itok=0ZNkHSW2)
Walking Polygons
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In this activity, learners walk the sides and interior angles of various polygons drawn on the playground. As they do so, learners practice rotating clockwise 180° and 360°.
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Pupil
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In this activity, learners explore their eye pupils and how they change.
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Jumping to Conclusions
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In this online brain stumper, the bottom half of a series of letters is covered. You may think you know what it says, but remove the black bar to see if you're right.
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Laser Lissajous: PVC Version
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In this activity, learners use a laser pointer and two small rotating mirrors to create a variety of fascinating patterns, which can be easily and dramatically projected on a wall or screen.
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Plot the Dot: A Graphical Approach to Density
Source Institutions
In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe.
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Monster Mallows
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In this activity, learners explore how ordinary marshmallows expand when heated in a microwave.
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Ocean Acidification in a Cup
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Ocean acidification is a problem that humans will have to deal with as we release more and more carbon dioxide into the atmosphere.
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Reflecting Rainbows: Decorate Your White Walls With Rainbow Colors!
Source Institutions
Like water drops in falling rain, a CD separates white light into all the colors that make it up.
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Bubble Tray
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In this activity, learners use simple materials to create giant bubbles.
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Bronx Cheer Bulb
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In this activity, learners observe what happens when they give a light source like a neon glow lamp a "Bronx Cheer." The lights appear to wiggle back and forth and flicker when learners blow air throu
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Descartes' Diver
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In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle.
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Blind Spot
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In this activity, learners conduct a simple test to find their blind spot.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-452.jpg?itok=IpaQ560a)
Cylindrical Mirror
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In this activity, learners create a cylindrical mirror to see themselves as others see them.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-052.png?itok=MxZGObu_)
Film Canister Farming
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In this hands-on botany activity, learners sprout vegetables in film canisters.
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Make a Sun Clock: Tell Time with the Sun
Source Institutions
Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-378.png?itok=hm7Auz_-)
Seismic Slinky!
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Did you know that a Slinky makes a handy model of earthquake waves?
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Water Sphere Lens
Source Institutions
In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.