Visible spectrum

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/visible-spectrum

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. How long is Visible spectrum?The visible spectrum spans approximately 380 to 750 nanometers in wavelength
2. What colors are in the visible spectrum?The visible spectrum has colors from red to violet, covering wavelengths about 380 to 750 nanometers.
3. How does a prism show a rainbow?A prism bends light differently for each color, separating white light into its colors. A second prism can recombine them back into white light.

Visible Spectrum: The range of electromagnetic radiation wavelengths detectable by the human eye, perceived as colors from violet to red.
Electromagnetic Spectrum: The entire range of electromagnetic radiation, ordered by frequency or wavelength, including radio waves, visible light, and X-rays.
Dispersion: The phenomenon where the speed of light in a medium depends on its wavelength, causing white light to split into colors.
Photoreceptors (Cones): Light-sensitive cells in the retina responsible for color vision, with distinct types sensitive to different wavelengths.