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Do Now: Why can’t you see an apple in the dark?. 06/8/11. Objective: Students will: explain why some spiders are white and others are black. 06/8/11. Observe, Question, Comment. You Do #1 You Do #2 You Do #3. 14 L. 14 R. Homework: Finish flashcards #15-22

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  1. Do Now: Why can’t you see an apple in the dark? 06/8/11 • Objective: Students will: • explain why some spiders are white and others are black 06/8/11 Observe, Question, Comment You Do #1 You Do #2 You Do #3 14L 14 R

  2. Homework: Finish flashcards #15-22 Quiz #3 during NEXT CLASS!!!! Study your flashcards and notes on pages 12-14 in the notebook.

  3. Do Now: Why can’t you see an apple in the dark? • Use your notes on p. 12R and your flashcards • Explain in 4-6 sentence paragraph. • Include and underline all these vocab words: • Visible Light, Light source, Opaque, Transmit, Reflect, Absorb, Rods and Cones 14L

  4. Do Now: Why can’t you see an apple in the dark? Answer: In order to have sight, there must be visible light. First, there must be a light source that is giving off the light waves. Then, these waves must be reflected off of an opaque object, such as an apple. An opaque object reflects and absorbs light waves. They do not transmit any light. The light waves that are reflected enter the eye where they hit the rods and cones. 14L

  5. Do Now: Why can’t you see an apple in the dark? 06/8/11 • Objective: Students will: • explain why some spiders are white and others are black 06/8/11 Observe, Question, Comment Notes:Color of Opaque Objects You Do #1 You Do #2 You Do #3 14L 14 R

  6. Notes: Color of Opaque Objects p. 48 • What is an opaque object? • Anything that REFLECTS/ABSORBS light • Anything that is not invisible  has a color • My examples (name and color): • 1. My apple is red. • 2. • 3. 14 R

  7. 2. What 7 colors is white light made out of? Middle = Orange Yellow Green Blue Indigo Right = Violet Short wavelength High Frequency High Energy Left = RED Long wavelength Low Frequency Low Energy HOW CAN YOU MEMORIZE THE ORDER OF THE COLORS??? ROY G. BIV 14 R

  8. Do Now: Why can’t you see an apple in the dark? 06/8/11 • Objective: Students will: • explain why some spiders are white and others are black 06/8/11 Observe, Question, Comment Notes:Color of Opaque Objects You Do #1 You Do #2 You Do #3 14L 14 R

  9. You Do #1 : “Besides being different colors, how are the light waves similar and different from each other???” 14 L

  10. Notes: Color (contd) p. 48 3. What determines the color of an opaque object? 1. The material the object is made out of THE COLOR OF THE OBJECT 2. The color of the light striking it You Do #2-- Why is one apple red and the others are green? What causes the difference? (on page 14L) 14 R

  11. Do Now: Why can’t you see an apple in the dark? 06/8/11 • Objective: Students will: • explain why some spiders are white and others are black 06/8/11 Observe, Question, Comment Notes:Color of Opaque Objects You Do #1 You Do #2 You Do #3 14L 14 R

  12. Notes: Color of Opaque Objects (contd) p. 48 • 4. How does the material of the object affect its color??? • --not all colors have the same WAVELENGTH (RedViolet) • --some colors are ABSORBED, other colors are REFLECTED this depends on what the object is made out of • KEY IDEA: THE COLOR OF THE OBJECT WE SEE IS THE COLOR THAT THE OBJECT REFLECTS INTO OUR EYES • We don’t see the other 6 colors because they were ABSORBED by the opaque object!!! What color is reflected by the leaf? GREEN What colors are absorbed by the leaf? THE OTHER 6 COLORS!!! 14 R

  13. Do Now: Why can’t you see an apple in the dark? 06/8/11 • Objective: Students will: • explain how light interacts with opaque objects • analyze the reasons why a red apple looks red 06/6811 Observe, Question, Comment Notes:Color of Opaque Objects p. 48 You Do #1: You Do #2: You Do #3: a. Red Apple b. White spider c. Black spider 14L 14 R

  14. You Do #3: What color light is REFLECTED by… red apple b. white spider black spider Absorbs other 6 colors LIGHT SOURCE White light strikes the apple No colors are absorbed!! White light strikes the spider Red light reflected into the eye White light strikes the spider All white light reflected to eye EYE with rods and cones No colors are reflected!!! All colors are absorbed!!!

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