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7 Terms

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What is light

A form of energy that is visible (that our human eyes are capable of sensing)

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What are Shadows

Shadows are places where light is “blocked”

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Types of Emission 1

Natural Light Artificial Light

• Not man-made

• Example: the Sun

– Energy is released during a fusion reaction which emits light

– This is nuclear energy

• Other examples: stars,

lightning, algae

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Types of emissions 2

Artificial Light

• Man—made

• Examples: Candle, light

bulbs

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