Radiation of heat Whiteboard exercise Play

Radioactive waste disposal Slideshow Play

Rain Animation Play

Reaction course under changing environmental conditions Animation Play

Reaction of iron with chlorine Animation Play

Reactions between halogens and metals Student activity Play

Reactions to heat and cold Student activity Play

Reactions to heat and cold Whiteboard exercise Play

Reducing friction 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

Semiconductor Animation 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