Refraction of plane waves Animation Play

Refraction of plane waves Whiteboard exercise Play

Refraction of plane waves Student activity Play

Refrigerator Student activity Play

Refrigerator Whiteboard exercise Play

Regulation of body temperature Slideshow Play

Renewable and non-renewable sources of energy Whiteboard exercise Play

Renewable and non-renewable sources of energy Student activity Play

Reversibility of the Carnot cycle Animation Play

Reversibility of the Carnot cycle Student activity Play

Reversible and irreversible processes Student activity Play

Reversible and irreversible processes Illustration Play

Reversible and irreversible processes Illustration Play

Seismic waves Class activity Play

Seismic waves Animation Play

Seismic waves Whiteboard presentation Play

Seismic waves Slideshow Play

Seismic waves Student activity Play

Seismic waves and the inside of the Earth Student activity Play

Seismic waves and the inside of the Earth Whiteboard exercise Play

Sensing the world – receptors Student activity Play

Sentences about energy transfer Whiteboard exercise Play

Solid-liquid equilibrium Animation Play

Solid-liquid phase change Whiteboard exercise Play

Solid-liquid phase change Student activity Play