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Mix and Match
Source Institutions
In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-670.jpg?itok=OiuD96ky)
Far-Out Corners
Source Institutions
Are there boxes, is this an illusion, or is this real life Q-bert? Illusions are always fun to build especially when you can build them.
The Bent Pencil
Source Institutions
In this optics activity, learners explore how light bends and affects what we see.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-741.gif?itok=XC-LmN77)
Look Into Infinity
Source Institutions
Learners use two mirrors to explore how images of images of images can repeat forever.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-866.gif?itok=szQ30o8Q)
Light Quest
Source Institutions
Learners test their "light-smarts" by playing a game called "Light Quest!" The game board represents an atom and each player represents an electron that has been bumped into the atom's outer unstable
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-452.jpg?itok=Q-vV7suq)
Two Lenses in One
Source Institutions
In this activity about light, learners explore how water can refract light and change the way they see things.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-729.jpg?itok=IfkOR2gf)
Exploring Earth: Investigating Clouds
Source Institutions
“Exploring Earth: Investigating Clouds” is a hands-on activity in which visitors create a cloud in a bottle and explore it with laser light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-546.jpg?itok=eeDJlTWW)
Why Are Bubbles So Colorful?
Source Institutions
In this activity, learners explore why they can see colors in bubbles and why they change.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-703.jpg?itok=smAAA9ad)
Soap Film on a Can
Source Institutions
The beautiful iridescent colors of a bubble in a can! With this Exploratorium Science Snack, create beautiful soap films on the open end of a can to see beautiful rainbows of color.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-552.jpg?itok=BNC9r4b5)
Mirror, Mirror on the Wall: Angles of Reflection
Source Institutions
In this optics activity, learners work in pairs to explore how mirrors work. Learners use tape to mark the angles needed to see each other's reflection in a wall mirror.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-587.png?itok=MIgw6sRf)
Why are Compact Fluorescent Bulbs More Efficient?
Source Institutions
In this activity, learners explore the relative efficiency of different bulbs, specifically incandescent vs. fluorescent.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-143.jpg?itok=Tx4Pip5_)
Does Sunscreen Protect My DNA?
Source Institutions
In this laboratory experiment, learners explore how effectively different sunscreens protect yeast cells from damage caused by ultraviolet (UV) radiation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-350.gif?itok=Dl801N1I)
See It to Believe It: Visual Discrimination
Source Institutions
In this activity (12th on the page), learners investigate their ability to discriminate (see) different colors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-537.jpg?itok=zffVb373)
Beam Me Up!
Source Institutions
This is a quick activity (on page 2 of the PDF under Stained Glass Activity) about the "Tyndall effect," the scattering of visible light when it hits very small dispersed particles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-245.gif?itok=VJP0Ww8r)
Solar Powered Cooking
Source Institutions
In this activity, learners make a solar oven. Learners witness the awesome power of the sun to make a yummy treat--a chocolate chip cookie!
![](/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-000-000-004-271.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-000-000-004-261.jpg?itok=K8ieKQmZ)
Kaleidoscope
Source Institutions
In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-889.gif?itok=a2dseEnc)
First Impressions
Source Institutions
Learners experiment with a commercial photo-sensitive paper (Sunprint® or NaturePrint® paper). They place opaque and clear objects on the paper and expose it to bright light, observing the results.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-581.jpg?itok=VxkAzCkQ)
Vanishing Rods
Source Institutions
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.