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• Article: Word of the week: Electromagnetic spectrum
  When you think of light, you probably think of what your eyes can see. But the light to which our eyes are sensitive is just the beginning; it is a sliver of the total amount of light that surrounds us. The electromagnetic spectrum is the term used by scientists to describe the entire range of light that exists. From radio waves to gamma rays, most of the light in the universe is, in fact, invisible to us! Find out how the electromagnetic spectrum works in this article from EarthSky. https://earthsky.org/space/what-is-the-electromagnetic-spectrum
• BioSTEAM: Make an Interactive Polarized Light Visualizer!
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• Lesson: Polarization
  You may not be aware of it, but polarized light is all around you. Generally speaking, the human visual system is not particularly adept at perceiving polarized light. While some animals, bees in particular, are quite sensitive to polarized light, humans usually find it difficult to detect it with the unaided eye.  Find out more from this lesson on Polarization from Arbor Scientific.
• Project: Locating the Sun by Polarizing Sunglasses
  Anti-glare polarizing sunglasses reduce ground reflected polarized rays. They can be used to locate the Sun even when it is hidden from view by clouds or by the horizon. In this way, they can even do the main task of "sky compass" and similar instruments. Find out how to make it yourself in this project by Industructables.
• Science Documentary : Electromagnetic Spectrum , a science documentary on forms of light
  Since all matter emits light, we can use infrared telescopes to see stars and dust in space that we would otherwise be unable to see.  And by viewing the color of the star, we can gauge its distance and its temperature. Find out more about forms of light in this science documentary by Science Round. Watch the YouTube video
• Video: 10 Ultrasonic Sensor Projects
  This video is about 10 Ultrasonic Sensor Projects you can make yourself.
• Video: Art With Polarization
  In this project we will make beautiful pieces of art that can change their colour when you move them. We do this by using the phenomenon called polarisation - this is a property that light waves exhibit. So, in the end, you will not only use your creativity but also learn something about the physics of light! Besides, you will use a laser cutter, a 3D printer and many of the other handy tools provided in a Fab Lab. https://www.instructables.com/id/Art-With-Polarization-light-phablabs/
• Video: Bell's Theorem: The Quantum Venn Diagram Paradox
  This video is about Bell's Theorem, one of the most fascinating results in 20th century physics.  Learn more about polarization and quantum mechanics in this video by Minute Physics. https://www.youtube.com/watch?v=zcqZHYo7ONs
• Video: PHYSICS GIRL EXPERIMENT- Only some humans can see this type of light
  Join Physics girl on a tour of polarized light and learn how to do a simple project to see the invisible.
• Video: What Is Echolocation? | Earth Unplugged
  Echolocation allows animals to build up an understanding of their surroundings but how does it work? Find out the science of echolocation in the BBC Unplugged video.
• Video: World's Most Asked Questions: Why is the Sky Blue?
  People ask Google everything under the sun. One of the most commonly searched questions in the world is “Why Is the Sky Blue?” Allow us at SciShow to explain.