Waves in water are transverse. This means that the vibrations causing the waves are perpendicular to the direction of energy transfer. As this little boat demonstrates, you can see that the waves are ...

A ripple tank can be used to measure and calculate frequency, wavelength and the speed of waves on the surface of the water. A ripple tank is a transparent shallow tray of water with a light shining ...

Science teachers are doing fewer practical experiments because of the demands of the curriculum, tests and badly behaved pupils, a poll suggests. Online research among 1,300 teachers by the government ...