Exploratorium
Bridge Light
An illuminating activity demonstrates how interference of light waves creates a pattern. Using Plexiglas™ and construction paper, participants see rainbows appear as they twist or press against the plastic plates. After the activity, you...
Exploratorium
Soap Film Painting
If you are up for constructing a wooden frame, you can do this demonstration of the interference patterns when light reflects off of layers of soapy film. Both constructive and destructive interference can be seen as evidenced by the...
Exploratorium
Corner Reflector
If you set up a triad of mirrors into a corner figuration, they act as a kaleidoscope, bouncing light waves back and forth indefinitely, changing the light that your eyes perceive. Although the materials required are very specific and...
Exploratorium
Cylindrical Mirror
Using flexible mirror-like paper, physical scientists experiment with images produced by curving it and looking into its reflective surface. They find that concave mirrors cause reflected light waves to cross and actually flip the image...
Exploratorium
Vocal Visualizer
Make sound visible with an activity that provides directions for how to build a vocal visualizer meant to create light patterns. Making noise into the visualizer causes a mirror to vibrate, reflecting a laser beam, and creating...
Exploratorium
Polarized Sunglasses
Reflected waves of light move within a plane, and because of this, polarizing materials can reduce the glare our eyes see. This resource explains how to set up a demonstration of this effect. Consider it for use in your physical science...
Exploratorium
Hot Spot
Not only does a concave mirror focus light waves, it can also concentrate infrared radiation into a hot spot. If you have a small electric heater and such a mirror, demonstrate this for your physical science class.
Other
Easyphysics: Chapter 10 Light Waves
Learners investigate light waves. Some topics examined are reflection of light, illuminance, and refraction of light. The resource includes example problems with solutions and a chapter quiz.
Exploratorium
Exploratorium: Science Snacks: Physics/light
Here is a large collection of simple science class activities for understanding the physics of light.
Exploratorium
Exploratorium: Critical Angle
Students can see light reflected and refracted in this demonstration. They will also discover the total internal reflection of light.
Exploratorium
Exploratorium: Soap Bubbles: Create Geometric Art With Soap Films
In this lesson plan students will learn about reflection of light using soap bubbles.
TeachEngineering
Teach Engineering: Beating the Motion Sensor
Lighting is responsible for nearly one-third of the electricity use in buildings. One of the best ways to conserve energy is to make sure the lights are turned off when no one is in a room. This process can be automated using motion...
Science is Fun
Science Is Fun: Floating Soap Bubbles
In this experiment you learn how to generate carbon dioxide inside a container, and float soap bubbles above the gas. Once the bubbles are suspended, it is possible to observe them closely, which is normally very difficult to do....
Exploratorium
Exploratorium: Bubbularium
What colors do you see in a bubble? Why do you see colors in a bubble? Use this site to find out the answer to these questions with this easy experiment.
Exploratorium
Exploratorium: Science Snacks: Soap Film Interference Model
In this experiment, students construct models of larger red and smaller blue waves on index cards, and use them to investigate how light behaves when it is reflected off the front and the back of soap film.
Exploratorium
Exploratorium: Science Snacks: Soap Film Painting
Investigate the constructive and destructive interference of waves as they reflect off the front and back surfaces of soap film. See what colorful effects can be created on a large, vertical soap film surface where gravity comes into play.
Exploratorium
Exploratorium: Science Snacks: Water Sphere Lens
Demonstrate for students how a round bowl of water can act as both a magnifier and a lens.
Exploratorium
Exploratorium: Snacks
Exploratorium's snacks aren't edible, but they are good! Use your science skills to discover gravity, learn about biology, do fun experiments.