Light, Sound and Waves

Big Idea: Waves carry information without causing a permanent change on the intervening medium. More info...

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Reversing Glass

The arrows should point in the opposite direction. The water acts like a glass lens, bending the rays of light and reversing...

At home 11-14 14-16

For centuries, glass has been used to make lenses that refract visible light.

Stories from Physics 11-14 14-16

Students explore how an arrow can look bigger and reversed through a glass of water. An introduction to the language used to...

Classroom Activity 11-14