It's About Time
Refraction of Light
Don't shine like a diamond, refract light like a diamond. Young scientists use an acrylic block and a laser light to observe refraction. Advanced scholars figure the sine of the angles of reflection and incidence as well as mastering...
Curated OER
Reflection and Refraction
Life is only a reflection of what we allow ourselves to see. The lesson includes three experiments on light reflection, light refraction, projection, lenses, and optical systems. Each experiment builds off the ones before and...
Teach Engineering
Bubbles and Biosensors
Bubbles aren't just for children. In the third installment of a seven-part series, teenagers use bubble solution to create bubbles and observe patterns of refraction on the bubble surfaces. Application of this concept to thin films in...
Teach Engineering
When Silicon Talks
Explore Snell's Law using thin films. In the fifth installment of a seven-part series, pupils solve a set of problems relating to Snell's Law and use this skill during an experiment requiring the collection of reflective measurements...
Discovery Education
Through the Looking Glass
Turning white light into colors only takes a little scientific know how! Young scholars create their own spectroscope in a hands-on activity exploring the properties of light. Using a diffraction grating, they discover how white light...
TeachEngineering
Teach Engineering: Make That Invisible! Refractive Index Matching
Students determine the refractive index of a liquid with a simple technique using a semi-circular hollow block. Then they predict the refractive index of a material (a Pyrex glass tube) by matching it with the known refractive index of a...
TeachEngineering
Teach Engineering: Bubbles and Biosensors
Students learn that color swirls on the bubble surfaces are caused by refraction. Then they apply this theory to thin films in general, including porous films used in biosensors, listing factors that could change the color that become...
Optical Society
Optical Society of America: Optics for Kids: Lose a Glass in a Glass
This is an activity that should only be done outdoors or in a well-ventilated area, with adult supervision, as it involves paint thinner. It demonstrates the concept of the index of refraction for different materials, in this case that...
TeachEngineering
Teach Engineering: Show Me the Genes
In this activity, students create posters which explain and illustrate thin film refraction and the factors that influence it. The goal is to explain the experimental results of using an optical biosensor, and prove these results with a...
TeachEngineering
Teach Engineering: When Silicon Talks
In this activity, students tackle this aspect of engineering as they solve problems for precise angles and speeds, and predict data output when samples are altered.
Science Buddies
Science Buddies: Project Ideas: Bitter to Sweet: Sugar Changes in Ripening Fruit
In this science fair project, use a refractometer to measure changes in sugar content in ripening fruit. The Science Buddies project ideas are set up consistently beginning with an abstract, objective, and introduction, followed by a...
Optical Society
Optical Society of America: Optics for Kids: Total Internal Reflection
An investigation into the total internal reflection of light, using a laser pointer. Accompanied by an explanation of what's happening, a discussion of Snell's Law, and links to additional information.