Properties of a parallel circuit Animation Play

Properties of elementary particles Student activity Play

Properties of subatomic particles Animation Play

Protons and electrons Student activity Play

Protons and electrons Whiteboard exercise Play

Quarks Student activity Play

Quarks Animation Play

Radiation Animation Play

Radiation and a charge Animation Play

Radio Animation Play

Radioactivity Student activity Play

Reaction between copper and nitric(V) acid Animation Play

Reaction between sodium and chlorine Whiteboard exercise Play

Reaction between sodium and chlorine Student activity Play

Reaction of aqua ions with carbonates Student activity Play

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

Reactions between halogens and metals Student activity Play

Reactions occurring at the electrodes Student activity Play

Reactions of commercially available galvanic cells Slideshow Play

Relative abundance of isotopes and mass spectra Student activity Play

Relative mass and charge Animation Play

Roentgen's experiment Animation Play

Rutherford's atomic model Student activity Play

Rutherford's experiment Whiteboard exercise Play

Rutherford's experiment Animation Play