In this module, students learn about the different sources of light, what causes darkness, and about shadows.

Investigate the science behind global warming with these classroom activities. Compare light and dark objects to see how they respond to light absorption and heat generation, and describe the albedo values of various materials.

Watch as physicist, Patricia Burchat, discusses two basic ingredients of our universe, dark matter and dark energy, and the effects they have in the expanding universe. [17:09]

Young scholars explore how patterns and contrasts in language (diction, imagery, figurative language) reveal central ideas in texts and develop various motifs (light vs. dark, dreams vs. reality, high vs. low, etc.) in Romeo and Juliet....

In 2015, a high school senior named Tiffany Sun conducted a social science experiment and presented her results at the Intel Science Talent Search in Washington, D.C. The results of her experiment shed light on an age-old question: are...

Try this experiment to learn how to make things glow under a black light, why this happens, and some applications of this phenomenon.

A lab activity where pond water samples are collected to observe the requirements for the growth of phototrophic organisms. To observe these requirements samples are separated into different variable groups. One group is incubated in the...

Examine how multiple light sources produce shadows of differing darkness and length. Move a player (with four light sources) around the field until your image matches the five other images on the page so you can identify where the player...

Bill Nye explains the phases of the moon with an experiment using a baseball, a lamp on a table, a dark room, and a stool or chair that swivels. As the person moves around, the changes in reflected light show the phases of the moon. The...