Light (5.6C)

The student is expected to demonstrate that light travels in a straight line until it strikes an object or travels through one medium to another, and demonstrate that light can be reflected, such as the use of mirrors or other shiny surfaces, and refracted, such as the appearance of an object when observed through water.

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Vocabulary:


Reflection: Energy waves bouncing off the surface of an object (mirrors or echoes return energy back to their source)

Refraction: Energy waves that bend (change direction and speed) as they pass from one type of object to another type

Lens: A clear piece of curved glass or plastic  that bends passing light to focus or spread the light rays

Mirror: Any object that has a reflective surface

Laser: A device that gives off a very strong and directed beam of light

Illuminate: Light up

Light Spectrum: The small part of the electromagnetic spectrum that the human eye can see; violet, blue, cyan, green, yellow, orange and red

Magnify: Increase in size, power or importance

Kaleidoscope: A tube that contains 3 mirrors that reflect many different designs of light passing through a colored disk on top.

Telescope: An instrument that uses mirrors and/or lenses to gather and focus light from objects far away


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