top picks
A blockbusters quiz about types of waves and wave properties

Detailed practical instructions and other notes that explain how to do experiments in optics to demonstrate the action of lenses, pinhole cameras, reflection, refraction, the eye,

Detailed practical instructions and other notes that explain how to introduce types of waves.

Detailed practical instructions and other notes that explain how to use the ripple tank to demonstrate the properties of waves.

Detailed practical instructions and other notes that explain how to show interference and explain it.

Information about the basics of wave properties with good animations and applets.

Fun, interactive research-based simulations of physical phenomena that you can download or run from the site this one covers sound waves, interference of sound, sound travelling through air not a vacuum.

Kitchen Science experiments are experiments from the Naked Scientists podcasts that you can do at home. This one is about using microphones and a laptop with Audacity to show how ultrasound scanning works.

A video showing how you can show that your mobile phone uses microwaves.

How to construct a ray diagram step-by-step for converging lenses.

Instructions on how to demonstracte the interference of light with sheets of plexiglass

Instructions on how to mke a Doppler buzzer ball to demonstrate the Doppler effect

An excellent animation that shows what happens when sound interferes.

An excellent interactive animation that enables you to look at refraction using a ray or wave view, and change the materials either side of a boundary.

An activity that revises wave propaerties and wave speed.

A site that revises wave properties and wave speed.

A site that revises ultrasound and infrasound and their uses.

An excellent activity that revises the uses of radio and microwaves for communication, and digital and analogue signals.

How to construct ray diagrams for plane mirrors

This excellent interactive explains the Doppler Effect using sound and moves on to redshift from stars.

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 immune system
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