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| Demonstrates: The eye's perception of color and tone |
Description: Of two equal gray areas, the one surrounded by darker areas will appear lighter.
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Instructions:
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| Items Used: Notes: Use special 3 1/2" x 4" slides. Math Description: None.
Size: 12" h x 30" w Condition: Good. Hazard: None.
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| Schematic:
None. Tech Specs:
None. Web Links: |
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| History: |
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