1. Studio Magic
Lesson Five : Colour

2. Expected Learning
Be able to describe how the visible spectrum leads to the colours we see.

3. Key Words
Colour
Spectrum
Absorption
Reflection

4. White light is made up of many colours.
We see these colours when white light splits up.
These colours are the Visible Spectrum.
Explain

5. Light has three primary colours – red, blue and green.
This is different from paint primary colours!
Explain

6. Task One : Mixing Light
Open the “Colour-vision_en.jar” program in the theory lesson five folder.
Click on the RGB bulbs tab.
Use the colour sliders to mix the light.
Copy and fill out the table on the next slide in your book.

7. Colour mixing with light
Half sliders
Full sliders
Red
Green
Blue
Red , Green, Blue

8. A blue filter lets blue light through.
It absorbs red and green light.
Blue filter
Explain

9. Reflection
A coloured surface absorbs all the other colours and only reflects light of its colour.

10. Imagine…
What would happen if I shone light from a blue filter on a red surface?

11. Task Two: Flags and Filters
Open this web site:
Use the colour filters to look at the Japanese Flag.
In your book, explain why:
1. The Red centre of the flag cannot be seen using the red filter.
2. The Red centre turns black when the green filter it used.

12. Task Three: Research - Colour vision
How does our eye see colours?
Start by researching the following words:
Retina
Rod Cells
Cone Cells
Use what you find to make a small “info graphic” explaining how the eye sees colour – you can do it in your book or using your Netbook

13. Examples You can look at examples of info graphics at this web site.
You might use powerpoint , or inspiration to make yours.