Search Results
Showing results 41 to 60 of 205
![](/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-000-000-002-621.jpg?itok=qlZGM3Yq)
Exploring Shadows
Source Institutions
This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan
![](/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-000-000-002-581.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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-542.png?itok=6-1rLCgr)
Make a Light Fountain
Source Institutions
In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-704.jpg?itok=ErqOpMqy)
Soap-Film Interference Model: Get on our wavelength!
Source Institutions
By making models of light waves with paper, learners can understand why different colors appear in bubbles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-543.jpg?itok=2Fxxf5SQ)
Lose a Glass in a Glass
Source Institutions
In this optics activity, learners use paint thinner to make a small jar seem to disappear inside a larger jar.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-569.png?itok=cvwUwg_a)
Super Gelatin
Source Institutions
Can gelatin (like Jell-O ®) change the speed of light?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-541.jpg?itok=BGuEbQXg)
Make a Telescope
Source Institutions
In this optics activity, learners make a simple telescope using two lenses and a cardboard tube. Learners construct the telescope and then calculate its magnification.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-980.gif?itok=QhwNR0tv)
See the Light
Source Institutions
In this three-part activity, learners conduct simple experiments to see how light refracts and reflects, and how colors of light affect what we see.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-210.jpg?itok=SFoYG7BL)
Black Magic (Color Chromatography)
Source Institutions
With a coffee filter, a black marker, and a cup of water, discover the secret colors hidden in black ink.
What Causes Rainbows?
Source Institutions
In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-116.jpg?itok=pjKZJLKD)
Spectroscope
Source Institutions
In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-386.jpg?itok=2y25OBEk)
See the World Through Color-Filtering Lenses
Source Institutions
In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-328.gif?itok=a2BXbqjO)
Understanding Albedo
Source Institutions
In this activity related to climate change, learners examine albedo and the ice albedo feedback effect as it relates to snow, ice, and the likely results of reduced snow and ice cover on global temper
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-599.jpg?itok=V3e3Fcdp)
Colored Shadows Investigation
Source Institutions
This activity (located on page 3 of the PDF under GPS: Light and Color Activity) is a full inquiry investigation into mixing colors with light.