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Showing results 1 to 20 of 75
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Soap Bubble Shapes
Source Institutions
Learners explore three-dimensional geometric frames including cubes and tetrahedrons, as they create bubble wands with pipe cleaners and drinking straws.
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Seeing 3D
Source Institutions
Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-947.jpg?itok=_rUhPLCR)
Cupcake Delivery
Source Institutions
In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-614.png?itok=Q7ID-hZH)
Universal Indicator Rainbow Trout
Source Institutions
In this activity, learners cut out a fish and then "paint" it using universal indicator and acids and bases.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-686.jpg?itok=DAiTGkRA)
Tops
Source Institutions
In this activity, learners discover that some things only stand up while they are spinning.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-645.png?itok=0WSZaTcP)
Chromatography Can Separate!
Source Institutions
In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-357.gif?itok=blHTfrM_)
Our Sense of Sight: Color Vision
Source Institutions
In this activity, learners investigate color vision as well as plan and conduct their own experiments.
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Boomerang
Source Institutions
Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-690.jpg?itok=PzwPJpxp)
Matraca
Source Institutions
In this activity, learners create a traditional Mexican noisemaker (a matraca) using cardboard, craft sticks, and a wooden dowel.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-232.png?itok=ShOvqN1S)
Pinball Wizard
Source Institutions
In this hands-on engineering project, kids use two simple machines, levers and inclined planes, to construct their own pinball machines.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-226.png?itok=WT2fUV3D)
Canine House of Cards
Source Institutions
This simple construction activity teaches the importance of architectural structure. Learners build and test designs for a paper "doghouse" strong enough to hold the weight of a jumbo dog biscuit.
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Make Maracas
Source Institutions
Make a rattle-like musical instrument! Shake it, hit it, spin it any way you want to!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-400.jpg?itok=SVpRqZWi)
Pinhole Viewer
Source Institutions
In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.
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Build Your Own Robot Arm
Source Institutions
In this lesson, learners develop a robot arm using common materials. Learners explore design, construction, and teamwork, as well as materials selection and use.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-522.png?itok=Urugo0sM)
Exploring Materials: Thin Films
Source Institutions
In this activity, learners create a colorful bookmark using a super thin layer of nail polish on water. Learners discover that a thin film creates iridescent, rainbow colors.
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Polymers are Chains (K-2)
Source Institutions
In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-071.jpg?itok=GD8Vf4wF)
Animal House
Source Institutions
The goal of this activity is to design, build and test a house or toy for an animal.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-314.jpg?itok=5Pcs7Kc-)
Hidden Color Chemistry
Source Institutions
In this activity, learners will discover what colors are in different markers, and may be surprised at the results.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-557.png?itok=vQ1X7kdB)
Exploring a Complex Space-Filling Shape
Source Institutions
In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-208.png?itok=CLGi1len)
Set It Straight
Source Institutions
In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads.