Physical Sciences

Ties to Science Framework

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LIGHT ENERGY (Grades 4-6):

• Light travels very rapidly in straight lines from its source and is reflected, refracted, or absorbed. (Systems & Interactions)
• White light is a mixture of colors that can be separated into a spectrum by a prism. (Systems & Interactions, Scale and Structure)
• Concave mirrors focus light by reflection; convex lenses focus light by refraction. (Systems & Interactions)
• The spectrum of visible light colors is the only part of the electromagnetic spectrum of energy moving through space that our eyes are able to detect. (Energy, Scale & Structure, Systems & Interactions)

LIGHT ENERGY (Grades 7-8):

Light can be described in terms of both the wave and particle theories, with light energy proportional to frequency and inversely proportional to wavelength. (Scale & Structure)

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