Search Results
Showing results 61 to 80 of 116
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-765.jpg?itok=lK1KtGXi)
Afterimage
Source Institutions
In this activity about light and perception, learners discover how a flash of light can create a lingering image called an "afterimage" on the retina of the eye.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-038.jpg?itok=rwSg7w-g)
Drawing Board
Source Institutions
The Drawing Board consists of a marking pen that remains stationary and a platform that swings beneath the pen, acting as a pendulum.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-126.jpg?itok=7wh7ZFkn)
Sound Sandwich
Source Institutions
With a straw, two craft sticks, and some rubber bands, construct a noisemaker called a Sound Sandwich and explore how vibration produces sound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-645.gif?itok=mU6P_hOD)
Sweat Spot
Source Institutions
In this activity, learners use a chemical reaction to visualize where moisture forms on the body.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-714.jpg?itok=--KYy6Er)
Vocal Visualizer
Source Institutions
With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-225.jpg?itok=gxrPZbUz)
Thrown For A Curve: Pitch Like A Big Leaguer
Source Institutions
You may have tried to throw a curveball or a slider, or even a screwball, with an ordinary baseball and found it difficult to do.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-676.jpg?itok=uDzzQpC1)
Indicating Electrolysis
Source Institutions
Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-780.gif?itok=FPyopPh1)
Stretch the Chain and See the Light
Source Institutions
In this activity, learners use their strength to light a light bulb. A chain made from paper clips is placed in series with a battery and flashlight bulb.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-068.jpg?itok=g9IRcnkn)
Cold Metal
Source Institutions
In this activity, learners discover that our hands are not reliable thermometers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-637.jpg?itok=ulAKDVqa)
Breakfast Proteins
Source Institutions
In this activity, learners construct a cereal chain as a model of how proteins are made in the cell.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-804.jpg?itok=YNYyUSoV)
Burn a Peanut
Source Institutions
In this activity, learners burn a peanut, which produces a flame that can be used to boil away water and count the calories contained in the peanut.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-737.gif?itok=-ihywTm9)
Moiré Patterns
Source Institutions
In this activity about light and perception, learners create and observe moire patterns.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-690.gif?itok=zfwfHtMk)
Fast Rusting
Source Institutions
In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-747.gif?itok=V4erlJf9)
Give and Take
Source Institutions
In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-653.gif?itok=7YAwxQ9s)
Life Size: Line 'em up!
Source Institutions
In this activity on page 1 of the PDF, learners compare the relative sizes of biological objects (like DNA and bacteria) that can't be seen by the naked eye.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-579.jpg?itok=xbaNWE6H)
Vortex
Source Institutions
In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-633.gif?itok=WaFFPUY5)
Carbon Configurations
Source Institutions
In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-720.gif?itok=e9gV0ZmZ)
Circles of Magnetism IV
Source Institutions
In this activity related to magnetism and electricity, learners observe as two parallel, current-carrying wires exert forces on each other.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-720.png?itok=KgPSnp7L)
Your Body in Your Mind's Eye
Source Institutions
This activity is about how you form mental images of your body's position in space, independent of vision. Can you take a sip of water from a cup with your eyes closed?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-736.jpg?itok=uvfOfqef)
Polarized Light Mosaic
Source Institutions
In this activity, learners use transparent tape and polarizing material to create and project beautifully colored patterns reminiscent of abstract or geometric stained glass windows--no glass required