With 54 question cards on permanent reflection, refraction and lenses, this is an enjoyable and challenging board game for up to six players per set. It is suitable for all abilities. Photocopy Board ...

Three comprehensive and fully resourced lessons on refraction, reflection and lenses for middle school plus an enjoyable and challenging escape room lesson to consolidate learning. Each teaching pack ...

At the interface between two facets of an artificial crystal, sound waves can be transmitted in the opposite direction to that expected, and undergo no reflection. Such wave behaviour could have many ...

Refraction is explained by looking into a pool and seeing Snell's law in action. We also explore the concepts of total internal reflection and formation of the critical angle. Plan and carry out ...

Exploiting a novel technique called phase discontinuity, researchers at the Harvard School of Engineering and Applied Sciences (SEAS) have induced light rays to behave in a way that defies the ...

Waves close wavesVibrations that transfer energy from place to place without the transference of matter. - including sound and light - can be reflected at the boundary between two different materials.