A balloon Animation Play

A change in the state of matter Animation Play

A comparison of the properties of C–C bonds and C=C bonds Animation Play

A constant source of voltage Simulation Play

A constant source of voltage Whiteboard exercise Play

A constant source of voltage Student activity Play

A family of transition metals Animation Play

A liquid exerts pressure in a different way from a solid Whiteboard exercise Play

A liquid exerts pressure in a different way from a solid Student activity Play

A liquid exerts pressure in all directions Animation Play

A liquid exerts pressure in all directions Whiteboard exercise Play

A liquid exerts pressure in all directions Student activity Play

A microscopic view Animation Play

A simple hydraulic machine Animation Play

A state of balance Animation Play

A task for Archimedes Whiteboard exercise Play

A task for Archimedes Student activity Play

A typical heating curve for a pure substance Illustration Play

Absolute values of entropy Student activity Play

Acid-base properties of amides Animation Play

Acid-base properties of gases Animation Play

Acidic properties Whiteboard exercise Play

Acidic properties Student activity Play

Acidic properties of ethanoic acid Animation Play

Acidic properties of hydrogen halides Student activity Play