Showing results 1 to 19 of 19
Water Illusions: Refraction & Magnification
Learners demonstrate how water can distort, refract and magnify light.
Make a TelescopeAdd to list Details
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.
See the World Through Color-Filtering Lenses
In this activity, learners examine how colored lenses act like filters and absorb all colors of light except for the color of the lenses.
Upside-Down TownAdd to list Details
In this activity, learners explore ray optics. Learners discover that they can use a magnifying glass to create an upside-down image.
Glass and Mirrors: An Inside Look at Telescopes
This hands-on astronomy activity allows you to create a “cutaway” telescope to clearly show how reflector and refractor telescopes work.
Fish Eyes: More than Meets the Eye
In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.
Personal Pinhole TheaterAdd to list Details
Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!
Liquid LensAdd to list Details
In this activity, learners discover that they can create a lens from a water drop. Learners test their lens by looking at words or pictures.
Slide Projector ActivitiesAdd to list Details
This resource contains several mini-explorations using a slide projector as a light source to investigate light and the properties of images.
Bending LightAdd to list Details
In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.
Bring it into Focus
In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.
Make Your Own TelescopeAdd to list Details
Discover how a refracting telescope works by making one from scratch using common items. This telescope won't have a tube so the learner can see how an image is formed inside the telescope.
Conversation PieceAdd to list Details
Focus sound through a balloon! In this Exploratorium activity, you'll use dry ice to create a balloon that's a sound lens.
In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.
Laser JelloAdd to list Details
In this activity, learners use gelatin as a lens to investigate the properties of laser light.
Pictures From LightAdd to list Details
Did you know that using a lens one can bend light to make pictures of the world? It's true!
Shimmering LensesAdd to list Details
In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.
Cardboard Opaque ProjectorAdd to list Details
In this activity, learners construct a projector out of cardboard to view their favorite images (such as storybook illustrations) on the wall.
Cardboard Box Camera ObscuraAdd to list Details
In this activity, learners construct a device that projects images onto a surface, so they can trace landscapes and other sights.