Crayons under the spectrophotometer

Crayons under the spectrophotometer: Making spectral power distribution graphs of a box a crayons.

Industrial Crayon Stick - Sakura of America

How we see an object? If the object is green, does it reflect green or absorb green? Also, if an object reflects only UV rays from sunlight and absorb all other colours

If I look at UV-C reflecting off a surface for example off my iPhone is it the same as looking directly into UV-C and therefore being harmed? - Quora

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Hach DR1900 Spectrophotometer Portable, DR1900-01H

In Praise of Erasmus

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Back to School Specials- What's the Chemistry behind Crayola's

Does an ultraviolet ray change direction through a mirror? - Quora

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PDF) Toxic elements in children's crayons and colored pencils

Do mirrors reflect ultraviolet light? - Quora

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What are QoR Iridescent and Interference Watercolors? – Opus Art

How we see an object? If the object is green, does it reflect green or absorb green? Also, if an object reflects only UV rays from sunlight and absorb all other colours