Reactions involving phase changes Animation Play

Reactivity of halogens Student activity Play

Reactivity of the alkali metals and their position in the periodic table Animation Play

Reactivity of the alkaline-earth-metals and their electron configurations Animation Play

Reading from graphs Student activity Play

Reading from graphs Whiteboard exercise Play

Reading from graphs Student activity Play

Reading the information included in the periodic table Whiteboard exercise Play

Recent changes in the Earth's temperature Slideshow Play

Recognising reducing agents Student activity Play

Recognising reducing agents Simulation Play

Recombination in bacteria Animation Play

Reduction formulas due to periodicity Student activity Play

Reduction formulas due to periodicity Whiteboard exercise Play

Refraction of light Student activity Play

Relative atomic mass Class activity Play

Repeated percentage change Class activity Play

Repeated percentage change Whiteboard presentation Play

Reversing the percentage change Whiteboard exercise Play

Reversing the percentage change Student activity Play

Rutherford's experiment Animation Play

s-Block elements Whiteboard presentation Play

s-Block elements Class activity Play

s-block elements Animation Play

Slope of a line Student activity Play