The world roughly us is full of remarkable colors. Whether her favorite is red, blue, green, orange, or what in between, you can constantly find something that suits your taste. Yet did you understand that light plays a big role in the colour that us see?

In this video, clock us check out how changing the color of a light can change what shade we think an item is. Check it out, and you can shot it at home too.

You are watching: Under green light a red object appears

Materials to CollectColor transforming light or vibrant LED Strip Colorful objectsA dark room, or blanket fortCellophane, markers, and flashlights Build/Make her Own/Try that OutFind part color transforming lights, or make your own by color in cellophane with a marker and placing it over the finish of a flashlight. Gather some colorful objects and also turn off all of the lights in a room or build a blanket fort that you can crawl into and have it be nice and also dark. To occupational well, it will have to be really dark, therefore you might want to shot this the end at night.Shine different color lights ~ above objects and also watch together the colour change. Shot it out v every color that you can.What is the Science? 

If you have ever before seen white irradiate shine with a prism or looked in ~ a rainbow in the sky, you have observed the white light includes all the colors of the rainbow.

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When us look at an object and watch its color, we are seeing all of the irradiate that mirrors off of the object. Red objects reflect red light, eco-friendly objects reflect environment-friendly light, and so on. However what happens to the rest of the colors the hit the object? They acquire absorbed! If you have actually a red object, every the orange, yellow, green, blue, and also violet light gets took in into the object. If you have actually a black object, almost every one of the light gets absorbed by the object. 

Since we are talking about objects and also how lock reflect light, that might help to think of this objects as color mirrors. A blue thing acts like a “blue mirror.” We only see what is being reflected back to us, in this instance it’s blue! so what wake up if you shine only red irradiate onto a blue object? all of that red irradiate gets took in and the blue object will seem to it is in dark, nearly black. If you currently shine a blue light onto the blue object every the blue can reflect turn off of the “blue mirror” and also you will watch the color again!

Ask your Young Scientists

As friend are changing the colour of irradiate on her objects, ask your scientist what they an alert about all the colors. What do they observe if they focus on one object/color at a time? What happens when you shine an ext than one shade light in ~ a time? What carry out you an alert when then light matches the color of the object. What perform you notification when the irradiate doesn’t enhance the object’s color?

More come Explore

Try a funny game:

Grab some different colored mite or paints and try to draw a picture while girlfriend only have one shade of irradiate shining on your artwork and also tools. Does it look favor you thought it would once you change the light back to normal?Grab a bunch of vibrant pieces, choose Lego or candy. Can you kind them right into piles by shade if friend only have red lights on? Is it less complicated or harder through a different color?

We desire to check out what you shot at home. Re-superstructure your creation with us by tagging and using the #ScienceAtPlay on social media for a chance to it is in featured. 


Andrew Fotta is a STEM educator at the Connecticut scientific research Center. The has right now holds a CT to teach certification for qualities K-6, and has invested time in the classroom in virtually all grades, and taught center school science. In enhancement to to teach classes for the scientific research Center, Andrew is also part of a team of educators at this time creating brand-new programs aligned with the new Next Generation scientific research Standards for qualities PreK-9. Andrew is one avid photographer, who enjoys mix science and also art in his work.