Light Patterns

Light Patterns

Students use various objects to make patterns on light-sensitive paper.

Introduction

Have you ever noticed that curtains or furniture will fade if they are exposed to sunshine? The sun's rays can cause material to change.

Light-sensitive paper is a special type of paper which is very sensitive to the sun's rays. When light hits it, chemicals in the paper react to the suns' rays and change colour. Putting objects on top of the paper prevents the light from reaching those areas. If placed in water, the paper reacts and the image is fixed onto the paper.

Objectives

Students will be able to:

• Observe light-sensitive reaction

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