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Do DIFFERENT COLORS ABSORB HEAT BETTER?

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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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Presentation Transcript
activity
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
slide3

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?
content coverd
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

vocab definitions
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.
real examples
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

lesson can be used in
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
standards
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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