Research on Absorbtion of Colour

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Absorption of colours
Introduction-
White light is the name given to what the human eye sees when all the colours that make up the visible light spectrum are combined.  The visible light spectrum is made up of red, orange, yellow, green, blue, indigo, and violet light. Primary colours are any of three colours of light from which all colours can be obtained by additive mixing; primary colours are red, blue, and green. Secondary colours of light result from combinations at the correct frequencies of primary colours of light. These include Yellow, Magenta, and Cyan. Objects appear different the colours we see are the wavelengths that are reflected or transmitted. Colours affect our society by changing their moods and feelings. Colours can make an illusion to the human brain. Like the colour white makes a small room look larger. Aim- Our aim is to observe the absorption of primary colours Materials-

* 1 A4 paper
* Stapler
* 1 (10cm x 10cm) red cellophane 1mm thick
* 1 (10cm x 10cm) blue cellophane 1mm thick
* 1 (10cm x 10cm) yellow cellophane 1mm thick
* 1 (10cm x 10cm) red cardboard
* 1 (10cm x 10cm) blue cardboard
* 1 (10cm x 10cm) yellow cardboard
* 1 (10cm x 10cm) orange cardboard
* 1 (10cm x 10cm) green cardboard
Method-
Risks you may face | Precautions you can take|
Cutting yourself with the scissors | Keep the sharp end pointing at the paper and remove foreign objects| Stapling yourself with the stapler| Keep the stapler on the paper wile stapling| Poking your eye with the scissors| Hold the scissors in a safe matter|

Dependant variable| Independent variable | Controlled variable| The change of colour | Different colours of cellophane | Same type of cardboard, same type of cellophane and same size|

The steps that were taken to do this experiment-
1. Gather all your material and equipment
2. Cut (10 cm x 1cm ) strips from the A4 paper
3. Staple the strips on the edge of...
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