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Research has found that melanin may help protect the skin from UV rays.

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Research has found that melanin may help protect the skin from UV rays.

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Plants use blue and red spectrum lights for photosynthesis. 

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Plants use blue and red spectrum lights for photosynthesis. 

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There are different types of light, natural and manufactured, that causes different effects on materials. 

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There are different types of light, natural and manufactured, that causes different effects on materials. 

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Causes no damage to materials, only provides light required for photosynthesis (light needed for plant growth)

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Causes no damage to materials, only provides light required for photosynthesis (light needed for plant growth)

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Indoor light, specifically grow-light, emits visible and infared light. 

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Indoor light, specifically grow-light, emits visible and infared light. 

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Sunlight emits gamma rays, x-rays, ultraviolet, visible, infrared, microwave, and radio. 

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Sunlight emits gamma rays, x-rays, ultraviolet, visible, infrared, microwave, and radio. 

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CCSS.ELA-LITERACY.CCRA.SL.4: Present information, findings, and supporting evidence such that listeners can follow the line of reasoning and the organization, development, and style are appropriate to task, purpose, and audience

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CCSS.ELA-LITERACY.CCRA.SL.4: Present information, findings, and supporting evidence such that listeners can follow the line of reasoning and the organization, development, and style are appropriate to task, purpose, and audience

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PS4.B: Electromagnetic Radiation:When light shines on an object, it is reflected, absorbed, or transmitted through the object, depending on the object’s material and the frequency (color) of the light. (MS-PS4-2)

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PS4.B: Electromagnetic Radiation:When light shines on an object, it is reflected, absorbed, or transmitted through the object, depending on the object’s material and the frequency (color) of the light. (MS-PS4-2)

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Melanin is a skin pigment, found in both humans and animals, and is what makes hair, skin, and eyes appear darker. 

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Melanin is a skin pigment, found in both humans and animals, and is what makes hair, skin, and eyes appear darker. 

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Australia has the highest rate of skin cancer in the world.

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Australia has the highest rate of skin cancer in the world.

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Ultravioloet and infared light are two types of light that are absorbed by genetic material in skin cells

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Ultravioloet and infared light are two types of light that are absorbed by genetic material in skin cells

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Certain types of light, emitted by the sun,  that does reach the surface can cause skin cancer.

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Certain types of light, emitted by the sun,  that does reach the surface can cause skin cancer.

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The sun is a natural light that emits different types of light

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The sun is a natural light that emits different types of light

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Ultraviolet light causes damage to genetic material in skin cells that can lead to skin cancer.

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Ultraviolet light causes damage to genetic material in skin cells that can lead to skin cancer.

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The atmosphere absorbs gamma rays and X-rays, so these types of light do not reach Earth’s surface.

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The atmosphere absorbs gamma rays and X-rays, so these types of light do not reach Earth’s surface.

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A material absorbs energy from some types of light and not others.

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A material absorbs energy from some types of light and not others.

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Lesson 2.4: Effects of Different Types of Light. 

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Lesson 2.4: Effects of Different Types of Light. 