What is light energy? Here we'll learn about the properties of light and how pigments such as chlorophylls absorb light energy.

In this lesson for learners from 3rd-12th grades will learn to build an experiment chamber to test the effects of light on Brassica rapa roots, and compare their results with outcomes from plant experiments conducted aboard the...

Produce light by bombarding atoms with electrons. See how the characteristic spectra of different elements are produced, and configure your own element's energy states to produce light of different colors.

Instructional module focusing on light. Discussion includes historical development of particle versus wave theories and the scientific studies leading to the understanding of light waves today. Site also includes an interactive practice...

Article explores the light-dependent reactions as they take place during photosynthesis in plants. Traces how light energy is used to make ATP and NADPH and explains photosystems and electron transport chains.

Tutorial provides a discussion of UV-Vis spectroscopy, infrared (IR) spectroscopy, and the Beer-Lambert law.

Let's take it from the top! This week's adventure, Operation: Lights, Camera, Action!, takes children to a movie set where they work behind-the-scenes and explore different kinds of jobs such as production assistant (keeps track of the...

This article from Khan Academy provides information about refraction and light bending. This information is intended for the Class 12 Physics Course (India).

A very simple device to convert light into sound can be made by wiring a solar cell directly to headphones (or an earpiece). The solar cell converts light into electricity and the headphones convert electricity into sound. The limitation...

Alison Fromme's article in Zoogoer, "Living Light," examines the role of light and luminescence in the lives of animals with specific attention given to those creatures which are able to manifest their own bioluminescence.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses light in relation to particles and waves. The difference between particles and waves is addressed along with...

Learners will determine the effect of placing objects made with different materials in the path of a beam of light. This lesson includes background information, guiding questions, directions, and a chart to record data.

How is light visible? Examine this source to understand what light is and how it travels. Answer discussion questions and practice problems to better recognize light rays and know their functions.

[Free Registration/Login may be required to access all resource tools.] Students explain the ray model of light, describe the law of reflection, and investigate how images are formed from flat mirrors.

Explains single slit diffraction and models how to calculate different characteristics of the light waves.

Article discusses the impact of light pollution on the health of human beings as well as on plants and wildlife. (Updated July 18, 2012)

The meaning and cause of refraction--as well as Snell's law of refraction--are discussed. Includes an interactive problem-solving form in which visitors relate angles of refraction to the incident angle and the indices of refraction.

Students learn how the eye responds to visible light, and how that function ultimately allows us to see.

Students learn about the properties of light as a photon and the wave-particle duality.

Light pollution is a particular concern in urban areas as people cannot enjoy looking at the night sky and all this light is being wasted.

Learn how to make stained glass window art using the phenomenon of polarized light.

A website dedicated to answering questions about UV, climate, and the ozone layer. On this page, students can find answers to questions like: What is the state of the ozone layer? And, what factors affect the ozone layer?

Students investigate an example of interference that provides further evidence in support of the wavelike behavior of light.

Where can we experience the phenomenon that light taking two paths from two locations to the same point in space can undergo constructive and destructive interference? There are several answers to these questions and they will be...