Search Results
Showing results 1 to 20 of 50
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-848.jpg?itok=vgq6upYr)
Bicycle-Wheel Gyro
Source Institutions
In this activity, a spinning bicycle wheel resists efforts to tilt it and point the axle in a new direction.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-727.jpg?itok=tix7D3o9)
Spherical Reflections
Source Institutions
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-000-000-000-970.png?itok=ixSt4N9L)
Which Powder is It?
Source Institutions
In this chemistry challenge, learners identify an unknown white powder by comparing it with common household powders.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-372.gif?itok=gD2nDHlR)
Space Stations: Sponge Spool Spine
Source Institutions
In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-972.png?itok=MsgPm-Ze)
The Liquid Rainbow
Source Institutions
Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-744.gif?itok=PyQidntq)
Hot Spot
Source Institutions
In this activity, learners explore the invisible infrared radiation from an electric heater.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-829.jpg?itok=d6a0Bqrc)
Falling Feather
Source Institutions
In this physics activity, learners recreate Galileo's famous experiment, in which he dropped a heavy weight and a light weight from the top of the Leaning Tower of Pisa to show that both weights fall
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-498.jpg?itok=XfwT9bP_)
Critical Angle
Source Institutions
In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-958.jpg?itok=p4Tz2_th)
You Can't Take It With You
Source Institutions
This activity models the necessary balance of creating power and cleaning up its associated waste. Learners participate in a game where they attempt to move forward toward a goal.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-837.png?itok=PnDs4b-z)
Making a Battery from a Potato
Source Institutions
In this electrochemistry activity, young learners and adult helpers create a battery from a potato to run a clock.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-378.jpg?itok=ZD_SWZ5D)
Space Stations: Beans in Space
Source Institutions
In this activity, learners perform 20 arm curls with cans that simulate the weight of beans on Earth versus the weights of the same number of beans on the Moon and in space.
What's So Special about Water: Absorption
Source Institutions
In this activity about water's cohesive and adhesive properties and why water molecules are attracted to each other, learners test if objects repel or absorb water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-462.png?itok=qTR9s83z)
Human-powered Orrery
Source Institutions
In this space science activity, learners work together to create a human-powered orrery to model the movements of the four inner planets.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-765.jpg?itok=42R414rE)
Testing Falling Peanut Butter Sandwich Myth
Source Institutions
In this activity related to rotational inertia (page 1 of the PDF under SciGirls Activity: Microgravity), learners will use a bit of scientific experimenting to test if open-faced peanut butter sandwi
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-392.jpg?itok=lTQfQ0iI)
Infant Moon: Moon Mix!
Source Institutions
In this activity, learners investigate the Moon's infancy and model how an ocean of molten rock (magma) helped shape the Moon that we see today.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-799.jpg?itok=qL4KIC-6)
Over the Hill
Source Institutions
In this physics activity, learners construct a small-scale version of a classic carnival game.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-672.jpg?itok=yfW3qoNq)
Corner Reflector
Source Institutions
In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-841.jpg?itok=gl8lBbgk)
Bird in the Cage
Source Institutions
In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-673.jpg?itok=u5IzswvR)
Convection Current
Source Institutions
In this activity, learners make their own heat waves in an aquarium.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-072.jpg?itok=U5YZF-ko)
Coupled Resonant Pendulums
Source Institutions
In this activity, learners discover that two pendulums suspended from a common support will swing back and forth in intriguing patterns, if the support allows the motion of one pendulum to influence t