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Optics & Light

See it in action -- Flinn Scientific optics and light kits and products.  Use Flinn Scientific resources to help you determine what will be your next brilliant classroom demonstration or activity.

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Color and Light Spectrum Demonstrations

Is there more to light than meets the eye? Does a green filter change white light into green light? What color of light is observed when blue and yellow filters are mixed? This demonstration uses a holographic diffraction grating and an overhead projector to produce a large, sharp rainbow of color. The large spectrum allows you to demonstrate the true nature of color and light and address common misconceptions related to the perception of color.

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Smartphone Spectroscopy

A spectroscope is a device for forming and observing the color spectrum of visible light. A spectrum is produced when light from any source is bent or dispersed. Does every type of light show the same spectrum? Turn your smartphone camera into a spectroscope to find out!

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Speed of Light in a Microwave

In addition to being a gooey treat, Peeps can help your students determine the speed of light! All you need is a glass pan, a microwave, and marshmallow Peeps.

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Bracken’s Laser Light Show—Demonstration Kit, AP6459

Bracken’s Laser Light Show Demonstration Kit shows how you can dramatically teach the concepts of reflection, waves and frequencies with this kit.

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Newton's Color Wheels

Newton's Color Wheels introduce your students to color mixing with this kit.

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Principles of Reflection and Optical Illusions—Demonstration Kit, AP7411

Principles of Reflection and Optical Illusion Demonstration Kit shows how you can bring the principles of reflection and optical illusion to life with this product.

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Kaleidoscoptical Activity—Demonstration Kit, AP8781

Kaleidoscoptical Activity Demonstration Kit shows how polarizing filters can create a beautiful kaleidoscope of colors when corn syrup is placed between them.

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Color and Light—Spectrum Demonstration Kit, AP6172

Color and Light Spectrum Demonstration Kit shows how you can help students learn about color and light.

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Spectrometer, AP6040

Spectrophotometer shows how students can identify elements with this tool.

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Ultraviolet Detection Beads, FB1147

Ultraviolet Detection Beads discusses this budget friendly tool that allows students to explore the effects of UV radiation.

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Flinn C-Spectra™

Flinn C-Spectra is a holographic diffraction grading that is ideal for seeing and observing the spectrum of colors from visible light.

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Build a Spectroscope Laboratory Kit

Build a Spectroscope Student Laboratory Kit shows how you can integrate STEM design into your curriculum by allowing students to build their own spectroscope.

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Spectroscope, AP8696

Spectroscope shows how this device will allow students to see the unique spectra produced by various elements when they emit electromagnetic radiation within the range of visible light.

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Water Marbles Chemical Demonstration Kit, AP7429

Water Marbles Chemical Demonstration Kit shows different ways you can use this kit to demonstrate various chemical concepts.

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Magenta and the Color Spectrum

Magenta and the Color Spectrum is a Physical Science Minute that explains why we perceive a color that does not exist in the visible spectrum of light.

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Many Ways to Teach with Lasers

Many Ways to Teach with Lasers demonstrates fun, safe activities to teach reflection, refraction, and diffraction with lasers in this Flinn Physical Science Minute.

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Sugar-Water Fiber Optics

Sugar Water Fiber Optics is a Flinn Physical Science Minute that shows how you can easily demonstrate the basic principles behind fiber optics with simple materials.

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Take a Digital Photo of an Atomic Spectrum

Take a Digital Photo of an Atomic Spectrum is a Flinn Chemistry Minute that shows how easy it is to take pictures of the unique color patterns of excited atoms--right in your own classroom!

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Energy in Photons

Energy in Photons shows "glow in the dark" evidence for the quantum nature of light!

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Absorption of Light Energy

Absorption of Light Energy shows how to observe and explain the basic principles of absorption spectroscopy and electron transitions using a diffraction grating on an overhead projector.

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Atomic Emission Spectra

Atomic Emission Spectra shows how you can view emission spectra from a variety of light sources.

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The Disappearing Beaker

The Disappearing Beaker shows how to use Index of refraction to make a beaker disappear.

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Colorimetry shows visual examples that illustrate Beer's law, namely that absorbance is proportional to both concentration and path length.

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Photonic Phosphorescence

Photonic Phosphorescence answers the question of what color or wavelength of light is needed to excite a phosphorescent substance.

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Energy in Photons

Students often confuse the concepts of intensity of light and energy of light. This demonstration provides a clear way to demonstrate that the intensity, or brightness, of light is NOT the same as the amount of energy a particular color of light possesses.

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Absorption of Light Energy

Why does the color of a copper chloride solution appear blue? As the white light hits the paint, which colors does the solution absorb and which colors does it transmit? In this activity students will observe the basic principles of absorption spectroscopy based on absorbance and transmittance of visible light.

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Atomic Emission Spectra

Spectrum tubes, fluorescent light bulbs, novelty “plasma globes,” and glowing “neon” signs all have one thing in common— they contain a gas that glows a specific color when a high voltage is applied to it. In this demonstration, this color will be viewed through a Flinn C-Spectra™. It is a holographic diffraction grating that separates, or diffracts, light in the same manner as a traditional ruled diffraction grating. It is ideal for the simple observation of spectral emission lines that make up the observed colors of the glowing gases. The advantage to the C-Spectra is that it can be held at any angle and the emission spectrum can still be easily observed. In Part B, an inexpensive “plasma globe” will be prepared from a Tesla coil and a simple light bulb.

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The Disappearing Beaker

Students will be amazed as various glass objects seem to vanish when immersed in a beaker of pale yellow oil.

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Allow students to predict how the appearance of red color varies based on changes in volume and concentration.

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Fiber Optics Strand

This is the fiber-optic material that seems to glow on its own! You don’t have to shine a light on its end. You can’t seem to turn it off! Place your finger over both ends. It is still shining on your fingers! How does this light pipe work?