Book 13, Question 30 · Video
Why Does a Red Cellophane Sheet Change What You See?
Red cellophane lets red light pass through and blocks most other colors. That changes which light reaches your eyes, so everything looks different through it!
Read the full answer →Watch on YouTubeSee the series on Amazon
What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why does a red cellophane sheet change what you see?
The Big Idea
Red cellophane lets red light pass and blocks most other colors. That changes what reaches your eyes! Let's find out how it works.
Red Filter
Step one: a red filter passes red light. White light has all the colors. The cellophane lets red through and blocks most of the rest. So your eyes get mostly red. Cellophane is a thin, clear, colored plastic sheet.
Red Things
Step two: red things look bright. A red object reflects red light, so lots of red light passes through the filter to your eyes. It looks bright, even whitish. That means colored objects can seem to change right before your eyes.
Green Things
Step three: green things look dark. A green object reflects green light, but the filter blocks it. Little light gets through, so it looks dark. A filter changes what reaches your eyes. Try it with markers and see which colors vanish!
A Closer Look
Let's take a closer look! The red marker looks bright, because red light passes through. The green marker looks dark, because the green light is blocked. The blue marker looks dark too. The red filter only lets red light through. The filter only lets its own color through.
Quick Facts
Quick facts! A red filter passes red light and blocks most other colors. Photographers and stage crews use colored filters called gels. A filter changes the mood of a scene. Never look at the Sun through a filter.
Think Like a Scientist
Now, think like a scientist! Look through red cellophane at a drawing made with red, green, and blue markers. Which colors seem to disappear? Which colors turn dark? Write down what you notice.
Outro
A red filter lets red light through and blocks other colors, so the world looks different. Science is amazing! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!