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Showing results 1 to 14 of 14
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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-000-000-004-271.jpg?itok=cJfDsdez)
Stereoscope
Source Institutions
In this activity, learners construct a device that allows them to view 2-D images in 3-D.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-260.jpg?itok=QMGg2-GJ)
Lever Cowboy
Source Institutions
In this activity, learners build a figure that moves and "comes to life" when they pull its string.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-117.jpg?itok=Yq5LvluE)
Mini Zoetrope
Source Institutions
In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-116.jpg?itok=pjKZJLKD)
Spectroscope
Source Institutions
In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-115.jpg?itok=TbgS2uc2)
Camera Projector
Source Institutions
In this activity (posted on March 14, 2011), learners follow the steps to construct a camera projector to explore lenses and refraction.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-136.jpg?itok=1dBRYNVB)
Personal Fan
Source Institutions
Cool off in the heat with this project! Learners use simple materials to build a fan that runs on a motor.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-247.jpg?itok=j0spO-8I)
Periscope
Source Institutions
In this activity, learners construct a device that allows them to look over ledges or around corners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-687.jpg?itok=kWflrAgh)
Spinning Illusions
Source Institutions
In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-119.jpg?itok=85Dtq5r3)
Bike Wheel Zoetrope
Source Institutions
In this activity (posted on April 18, 2011), learners follow the steps to construct a zoetrope, a device that produces an illusion of action from a rapid succession of static pictures, using a 16" bik
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-160.jpg?itok=48z-YJHY)
A Simply Fruity DNA Extraction
Source Institutions
In this activity, learners extract DNA from a strawberry and discover that DNA is in the food they eat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-118.jpg?itok=3-FkNj2C)
Stroboscope
Source Institutions
In this activity (posted on March 20, 2011), learners follow the steps to construct a stroboscope, a device that exploits the persistence of vision to make moving objects appear slow or stationary.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-688.jpg?itok=cgEsPCBc)
Slide Whistle
Source Institutions
In this activity, learners build a slide whistle using PVC pipe, bamboo skewer, and piece of foam. Construction of the instrument is relatively simple.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-702.jpg?itok=rOcfJwnz)
Torsion Drum
Source Institutions
In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.