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Do DIFFERENT COLORS ABSORB HEAT BETTER?

Do DIFFERENT COLORS ABSORB HEAT BETTER?. BY: Mylie Hill. Activity. p lace students in groups s tudents make 4 different color boxes for testing (white, yellow, red, black) give each group 4 ice cubes (one per box) l eave ice cubes placed in colored boxes in the sun or under heat lamp

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Do DIFFERENT COLORS ABSORB HEAT BETTER?

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  1. Do DIFFERENT COLORS ABSORB HEAT BETTER? BY: Mylie Hill

  2. Activity • place students in groups • students make 4 different color boxes for testing (white, yellow, red, black) • give each group 4 ice cubes (one per box) • leave ice cubes placed in colored boxes in the sun or under heat lamp • predict which color box melts ice first • record the order and time required to melt ice

  3. Worksheet to record findings • Group Members:____________________________________ • Do different colors absorb heat better than others? • Colors Time to Melt (Min) • White___________________________________ • Red_____________________________________ • Yellow___________________________________ • Black____________________________________ • Which ice cube melted first, second, third, and fourth? • Do different colors absorb heat better than others?

  4. Pictures of Activity

  5. During Experiment Before After

  6. CONTENT COVERD • certain colors absorb light better than others • the sun produces heat and light • Why do ice cubes melt? • the purpose of solar panels • changes that occur in objects On a summer afternoon, the black roof at left was measured to be 54ºF (30ºC) warmer than the white roof at right

  7. Vocab/definitions • heat: A form of energy that causes substances to rise in temperature or to go through associated phase changes (as melting, evaporation, or expansion). • solar energy: Energy derived from sunlight. • solar cell: A photo-electric cell that converts sunlight directly into electrical energy and can be used as a power source. • solar panel: A group of solar cells forming a flat surface (as on a spacecraft). • energy: The capacity for doing work; raising weight, for example. • absorb: To take in; to transform (radiant energy) into a different form usually with a resulting rise in temperature. • reflect: To bounce waves of light, sound, or heat off a surface. • radiant energy: Energy (as heat waves, light waves, radio waves, x-rays) transmitted in the form of electromagnetic waves.

  8. REAL EXAMPLES • Engineers use understanding of how different colors reflect light/heat • design products & find solutions • Asphalt roads/tar roofs absorb heat • white roofs reflect heat cooling temperatures • People use the knowledge when deciding what to wear • white shirt on sunny day • dark shirt on cooler day Workers install a white roof in Atlanta, Georgia, to reduce the amount of energy required to keep the inside building

  9. Lesson can be used in….. • Kindergarten-second grade classrooms • Earth and Space science • During Physical science lesson • Investigate properties of matter & changes occurring in objects • Investigate melting objects

  10. Standards… • Second grade Georgia Standard- • Students will investigate the properties of matter and changes that occur in objects. Investigate melting objects • International Technology &Engineering Educators Association- • Different materials are used in making things. (Grades 0 - 2) • Asking questions and making observations helps a person to figure out how things work. (Grades 0 - 2) • Energy comes in many forms. (Grades 0 - 2) • Compare, contrast, and classify collected information in order to identify patterns. (Grades 3 – 5)

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