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Transcript

Did you know? It only takes 8 minutes and 17 seconds for light to travel from the sun to the Earth!!!!

VISIBLE LIGHT

Visible light waves are the only wavelengths of the electromagnetic spectrum that humans can see. The different wavelengths of visible light are seen as the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.

The human eye and brain work together to convert visible light energy into an electrical impulse that can be interpreted as an image.

Independent work Complete the statements

Word bank sound reflect shadows fast straight thunder

  • Light travels in __________lines.
  • Light travels very _________. Its speed is around 300,000. kilometer per second.
  • Light travels much faster than _______This is why we see lightning before we hear_________.
  • We see things because they _________into our eyes.
  • When the light is blocked, we produce ____________.
Properties of Light