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Transcript

  • 1. Light
  • 2. Light sources• Think of 4 light sources
  • 3. Properties of light• Think of 3 properties of light 1. Light travels in straight lines from a light source to your eyes2. If something is in the way you get a …………………………… 3. Light travels very fast. 186,000 miles a second
  • 4. How we see• Explain the two ways we can see something 1. Light may come directly from the source to your eyes (Looking at a light bulb) 2. Light bounces off objects into your eyes (Looking at the moon)
  • 5. What do mirrors do ?A mirror reflects the light.The light bounces off the surface and into your eyes.
  • 6. How do these mirrors work ?
  • 7. B The eye AC
  • 8. Iris The eye LensPupil
  • 9. Making shadows• Think of five materials to make a good shadow with.• Think of five materials that would make a bad shadow.
  • 10. Making shadows• Materials that make a good shadow are called …………….• Materials that make a bad shadow are called …………………..• Materials that some light can pass through are called………………….