Showing results 1 to 8 of 8
Exploring Materials: Nano Gold
In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.
Glue Stick SunsetAdd to list Details
In this activity, learners explore why the sky is blue. Learners model the scattering of light by the atmosphere, which creates the blue sky and red sunset, using a flashlight and clear glue sticks.
In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).
Vanishing RodsAdd to list Details
This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.
Why is the Sky Blue?
In this activity, learners create a "mini sky" in a glass of water in a dark room.
Pixel TubeAdd to list Details
In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.
Blue SkyAdd to list Details
In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.
Why is the Sky Purple?Add to list Details
This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.