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Vision: Butterflies vs. People

By Janice VanCleave

People Can Only See Visible Light. Light is a form of wave energy called electromagnetic radiation. Visible light is the only kind of light that people can see. Visible light comes in different colors. Each visible light color has a different amount of energy. Each visible light color has a different wavelength (these are shown […]

Filed Under: Biology, Insects Tagged With: electromagnetic radiation, UV light, vision

Flame Colors:Photons

By Janice VanCleave

When you see colors, it is because some form of visible light has entered your eye and was absorbed by special light sensitive cells inside your eyes.

Filed Under: Light, Physics Tagged With: colored flames, electromagnetic radiation, photons, visible light

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Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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