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

This online exploration provides an opportunity to identify the different properties of waves and the relationship that exists between energy, wavelength, and frequency. Correlate images from the Hubble Telescope to the wavelength,...

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.

Discussion of the conversion of light energy to chemical energy through the life-sustaining process of photosynthesis. Explores the reactions of photosynthesis, where they take place, and their ecological importance.

This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction. Includes background reading and discussion questions. [2:05]

Physics students find out how to effectively define and clarify kinetic and potential energy.

Students learn how laser communication systems are built by observing how sound can be encoded into, and transmitted by a light beam.

Resource focuses on the relationship between the frequency, wavelength and speed of light. Has a link to an interactive activity relating frequency, wavelength, and energy.

Students are introduced to the electromagnetic spectrum through this group research activity. Each group investigates a different wavelength range within the em spectrum and reports back to class. Discussion ideas also included.

Students will calculate energy, frequency, or wavelength. After calculating, students graph their data and answer analysis questions.

Through a teacher-led discussion, students realize that the food energy plants obtain comes from sunlight via the plant process of photosynthesis. They learn what photosynthesis is, at an age-appropriate level of detail and vocabulary,...

This site from Architectural Acoustics and Lighting provides a discussion of various factors affecting the acoustics of a given room. Room dimensions, the wavelength of the sound wave, the physical characteristics of the walls, the...

Students work in teams to learn about solar panel design, simple circuits, and how solar energy is used to provide power to simple machines such as calculators.

Learn all about stars and the electromagnetic spectrum in this series of activities.

Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). They can use this technique to compare the amounts of photosynthesis that occur...

Learn how heat energy can be produced by mechanical and electrical machines.

An environmentally conscious group brings to light the relationship between food, water and energy, and the importance of sustainability. The site looks at issues such as animal welfare, social justices, food policy, the industrial food...

Investigate the wavelength properties of visible light and the scattering effects of the earth's atmosphere on different wavelengths.

Compared to incandescent lamps, fluorescent lamps last longer, require less energy and produce less heat, advantages resulting from the different way in which they generate light.

Students learn about the conservation of energy, aspects that affect energy in a system such as pressure and temperature, and to gain a better understanding of concepts such as entropy.

Most of us have seen the rainbow-hued breakdown of the composition of light. Light is of course a form of energy. A magnetic field changes the behavior of light- a phenomenon known as the Zeeman effect.

During this lesson, students will construct a passive solar house from everyday items then explore how the sun's energy is used to heat and cool it.

The core of this lesson is simple circuits and the differences between parallel and series circuit design. Students perform experiments to test the differences between the two circuit designs using low voltage light bulbs.

This video segment adapted from NOVA uses satellite imagery to illustrate the Gulf Stream's path and animations to explain how atmospheric phenomena cause it to move. [1:51]