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How can light’s intensity be varied?

In this activity, which covers the concepts of transparency and opacity, students gain a better understanding of how light’s intensity can be varied. They will also discover the two major types of light: natural light and artificial light.


Here are some suggestions for other resources that you might use in class before or after carrying out the activity:

Download complete reference list (PDF)


Here are ideas for other similar experiments and links to additional material:

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