Types of Light

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A range of frequencies on the electromagnetic spectrum

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The part of the EM spectrum that we can actually see

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Light caused by heat production

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Light given off by objects that have not been heated

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A substance absorbs UV light and converts it into visible light. Example: objects that glow under a black light

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A substance absorbs UV light and converts it into visible light, but there is a delay in both starting and stopping the glow when exposed to the UV light. Example: glow-in-the-dark objects

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Light is created when two or more substances are mixed together, triggering a chemical reaction. Example: glowsticks

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The production of light by living organisms. Example: fireflies

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An object gives off light as electricity passes through it, but doesn't create noticeable heat. Example: LED lightbulbs

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