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This video, similar to the video about telescopes, provides students with yet another example of a real application of lenses. This one is likely to be relevant to at least a few members of the class.

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How do Eyes and Glasses Work? | How to Make Everything: Eyeglasses

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This website contains a variety of activities related to optics that students can explore.

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The Optical Society: Exploring the Science of Light | Optics For Kids

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The Optical Society presents Exploring the Science of Light

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This experiment, taken from NASA's website, allows students to attempt to build their own pinhole camera at home.

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Student Project: How to Make a Pinhole Camera | NASA/JPL Edu

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Learn how to make your very own pinhole camera to safely see a solar eclipse in action.

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This video explains how telescopes used to work, and how they are built today. This provides students with a real example of an application of curved lenses and mirrors.

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This website contains an interactive simulation that allows students to see certain characteristics of different waves in the electromagnetic spectrum, including wavelength, frequency, energy, and brief facts regarding each type of wave. This software allows students to have a chance to observe differences between waves; the fact that the waves are displayed as an animation means this website is more visually stimulating than a page from a textbook.

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Questions for discussion

What are the differences between the different types of electromagnetic radiation?

Which has a longer wavelength - visible or infrared radiation?

Which contains more energy - visible or infrared radiation?

Which has a higher frequency - visible or infrared radiation?

About how fast do all EM waves move?

Do EM waves transmit energy or mass?

Take away concepts

Electromagnetic waves occur in a continous spectrum based on their wavelength.

EM waves of a particular range of wavelengths are give names such as infrared and visible.

Unlike mechanical waves such as sound or earthquake waves, EM waves can travel through empty space.

EM waves are used for communication with satellites and for observing the Earth from space.

Sunlight is made up of EM waves.

© 2010 Earthguide at Scripps Institution of Oceanography.
All rights reserved.

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EM spectrum interactive - Earthguide Online Classroom

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What are the differences between the different types of electromagnetic radiation? Which has a longer wavelength - visible or infrared radiation? Which contains more energy - visible or infrared radiation? Which has a higher frequency - visible or infrared radiation? About how fast do all EM waves move?

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This website contains two flash player simulations that allow students to play around with colour mixing, and to observe how different inputs affect the colours they see.

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ADDITIVE COLOR | Interactive | Optics - Flash animation for optics learning - Interactive Physics Simulations | Interactive Physics Animations | Three primary colors: red, green, blue. Interactive flash animation to synthesize a color by additing primary colors on a blank screen - Physics and Chemistry by a Clear Learning in High School, Middle School, Upper School, Secondary School and Academy. PCCL

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ADDITIVE COLOR | Interactive | Optics - Free flash animation for optics learning - Interactive Physics Simulations | Interactive Physics Animations | Three primary colors: red, green, blue. Interactive flash animation to synthesize a color by additing primary colors on a white screen - Physics and C…

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Bioluminescence is the ability of a plant or animal to produce light. This web page goes over the details of how bioluminescence works, and some of the reasons why organisms have it. In class, students can take a couple of minutes to skim this article.

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You may have seen the sparkle of fireflies on a summer's night. The fireflies produce light through a chemical reaction in their glowing abdomens, a process known as bioluminescence. But did you know that seascapes can also glow and glitter thanks to the light producing abilities of many marine organisms? Some fish dangle a lighted lure in front of their mouths to attract prey, while some squid shoot out bioluminescent liquid, instead of ink, to confuse their predators. Worms and tiny crustaceans also use bioluminescence to attract mates.

Humans primarily see bioluminescence triggered by a physical disturbance, such as waves or a moving boat hull, that gets the animal to show their light off, but often animals light up in response to an attack or in order to attract a mate. Bioluminescent organisms live throughout the water column, from the surface to the seafloor, from near the coast to the open ocean. In the deep sea, bioluminescence is extremely common, and because the deep sea is so vast, bioluminescence may be the most common form of communication on the planet!

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You may have seen the sparkle of fireflies on a summer's night. The fireflies produce light through a chemical reaction in their glowing abdomens, a process known as bioluminescence.

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This short video shows some examples of bioluminescence, or organic light, and describes its purpose. This helps to contextualize the concept. I would show this video as I introduce the concept.

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Bioluminescence on Camera | National Geographic

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The idea of a virtual image is a confusing one for Grade 10 students, but it is essential that they understand this concept to reach the other contents of the unit. This video, from Khan Academy, explains the concept well, in language that is accessible for all learners.

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Virtual image | Geometric optics | Physics | Khan Academy

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Instructions: Turn off the lights, take a wintergreen Lifesaver candy, and bite down! Ask a classmate if they saw any light flash. This is a fun activity that shows students something they may never have seen before.

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Similar to the Concave and Convex mirror simulation, this website allows students to see what happens to the image of an object when viewed through a convex lens.

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This simulation can serve either as an introduction to curved mirrors, or as consolidation after the concepts have been introduced. It allows students to observe what happens to an image as it moves around, relative to the focal point of the mirror.

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Description
Simulation of image formation in concave and convex mirrors. Move the tip of the Object arrow or the point labeled focus. Move the arrow to the right side of the mirror to get a convex mirror.

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Description Simulation of image formation in concave and convex mirrors. Move the tip of the Object arrow or the point labeled focus. Move the arrow to the right side of the mirror to get a convex mirror.

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Unfortunately, the experiment may not work if the room isn't dark enough; this video shows the same concept. I would show the first half of this video after trying the experiment.

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LIFE SAVER LIGHTNING (Triboluminescence Slow Motion) - Smarter Every Day