What's Bright Red and Invisible?

Study the rate of cooling for objects of different colors. Learners focus on the reflection and absorption of infrared light. Your classes may be surprised to learn objects that heat the slowest also cool the slowest.

Grow bread mold and prove that a variety of microscopic mold spores can be found everywhere. If you are sending this with individuals as an at-home activity, photocopy it in color so that the red warning to not open the plastic bag...

Need a bright idea for an engaging lab? Watch your class light up as they explore the difference in efficiency between incandescent and LED bulbs! The resource makes use of simple materials and encourages learners to infer what's...

Fifth graders draw constellations in the sky and use the brightness levels of stars to show how big they are. For this constellations lesson plan, 5th graders describe what they see in the night sky by discussing the star's distances.

Compact fluorescent bulbs are the easiest way to increase energy efficiency around the house. But why? Science scholars compare CF bulbs with their incandescent counterparts using a simple test. A solar-powered toy illuminates the...

Students wxplore acids and indicators by watching a demostration in which "magic" ink appears. They duplicate the demonstration by writing magic messages using phenolphthalein solution and painting the message with vinegar to show it.

Students observe a demonstration that shows that the indicator, phenolphthalein, is a chemical that displays different colors depending on either the acidity or the basicity of the environment. They use the substance to reveal secret...

Students investigate why some sunrises and sunsets are unusually bright red.

Take a real close look at your phone screen. What do you see? Here's an activity that provides guidance on how to look at a smart phone screen in order to see the pixels and to see how the phone creates colors and motion on the screen.

When your life science class is learning about the eye and how it works, you can add this activity as a demonstration of how the retina holds an afterimage. After staring at a red, green, or blue bird shape, pupils glance at a cage and...