Protons and electrons Whiteboard exercise Play

Protons and electrons Student activity Play

Radiation Animation Play

Radio Animation Play

Radioactivity Student activity Play

Reaction mechanisms Whiteboard exercise Play

Reaction mechanisms Student activity Play

Reaction of iron(III) chloride with potassium iodide Animation Play

Reaction of transition metals with hydrochloric acid Animation Play

Reactions of commercially available galvanic cells Slideshow Play

Receptor potential and sensory transduction Whiteboard exercise Play

Receptor potential and sensory transduction Student activity Play

Relativity of potential energy Animation Play

Resting and action potentials of a neurone Student activity Play

Roentgen's experiment Animation Play

Simulation Student activity Play

Size of electric current Animation Play

Size of electric current Student activity Play

Size of electric current Whiteboard exercise Play

Spontaneous changes and probability Student activity Play

Standard electrochemical potential Class activity Play

Standard electrochemical potential Whiteboard presentation Play

Standard hydrogen half-cell Student activity Play

Standard potential of the hydrogen electrode Animation Play

Standard reduction potentials Chart Play