VanCleave's Science Fun

Your Guide to Science Projects, Fun Experiments, and Science Research

ABOUT THE SOUND PICTURE

With mouth wide open, vibrating air coming up the throat from the vocal chords leaving the open mouth and spreading in all directions. 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 and now am creating this science website.   My scream was not staged. The picture was to be of two adult cats, which I was holding. A microsecond before the camera snapped, the two cats dug their claws into my skin as they prepared to leap out of my arms. A picture like this is great for making inferences. Kids could make "guesses" as to why I am screaming. They would be drawing on facts from the photo, such as I look like I am in pain or maybe I am just pretending.

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How a Chameleon’s Skin Changes Color

By Janice VanCleave

The group of four photos model what a person with pigmented skin like a chameleon would look like.

  What Happens Inside a Chameleon that Changes Its Skin Color? New Terms light energy pigment transparent visible light white light   Chameleons are so cool! Think about having skin that changes color when there is a change in temperature, or if you get excited –upset–mad–don’t feel well. We would not be able to “hide […]

Filed Under: Biology Tagged With: chameleon's skin color, chameleons, chromophores, melanin, melanocytes, pigment

Chameleon Color Changes

By Janice VanCleave

The chameleon lizard as well as the plant do not represent natural organisms. But this fantasy image is a good model for camouflage.

Chameleons Do Not Change Color to Match Their Background Terms You Will Learn camouflage chameleon environment predator stimuli   A chameleon is a type of lizard whose skin can change color. If a chameleon’s skin color is similar to the color of its environment (surroundings) it will blend in with the environment and be difficult […]

Filed Under: Biology Tagged With: camouflage, chameleon, chameleon's skin color, predator, stimuli, stimulus

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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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Janice VanCleave answers your questions about all the different kinds of color changing products.

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Other Janice VanCleave Free Color Changing Lessons

  • HAT Stickers Heat Activated Thermochromic Stickers Stickers that change colors when heated.
  • SA Stickers Sun Activated Stickers Stickers that change color when exposed to sunlight.
  • TLC Dot Stickers Thermochromic Liquid Crystal Stickers Stickers that, like Mood Rings, change color when heated.

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