Let There Be Light!

Knowledge of acids and bases doesn't need to be a secret. Learners use red cabbage to create an indicator solution, then test how adding lemon juice (acid) and detergent (base) changes the color of the solution. They then use the concept...

Here's an activity that will change how one sees color. Pupils try out an experiment on chromatography where they place a drop of food coloring on a coffee filter, add several drops of water, and watch the colors spread and separate....

Watch celery change from green to purple in a video that demonstrates how celery absorbs food coloring to change the color of the leaves. The resource has viewers thinking about the science behind types of water and photosynthesis.

Zoe and RJ are trying to photograph an egret on a lake, but they are having trouble with the lighting. Reflection, refraction, and absorption are explored through their thoughtful dialogue so that your physical scientists are illuminated...

Photocopy single-color images onto acetate transparencies and either demonstrate or have your class experience the combination of colors to produce images. Children will learn that cyan, magenta, yellow, and black combine to make all of...

Young scholars investigate solar energy and color. In this solar energy lesson, students assess the benefits of solar energy. Young scholars discover that solar energy is attracted to darker colors and conduct an experiment using...

Fourth graders explore how colors react in water (chromatography) and other solvents. They observe, investigate, measure, record data and communicate their results in the form of graphs/charts and narration presented to the class....

When you step in mud it can be very messy. How can you tell if soil is wet or dry before you step in it? In this experiment, you can see if color can help you figure it out.

Did you know that the color of your house could save money? Do this experiment to see which colors regulate temperature best in different environments. Learn how painting the house can save money on the energy bill.

Let there be light in your classroom with a video that explains that light travels in waves, the electromagnetic spectrum contains seven colors, and the color of an object depends on which light waves it reflects and absorbs. With...