A battery made of coins Student activity Play

A battery made of coins Whiteboard exercise Play

A battery made of coins Animation Play

Ability to react with metals Animation Play

Absorption of visible light Animation Play

Absorption spectra Student activity Play

Abundance of the elements in the crust and in the whole Earth Animation Play

Acid dissociation constant and pH (2) Whiteboard exercise Play

Acid dissociation constant and pH (2) Student activity Play

Acid rain destroys forests Animation Play

Acid-base reactions of metal ions Class activity Play

Acid-base reactions of metal ions Whiteboard presentation Play

Acidic oxides Animation Play

Acidity reaction (hydrolysis) of metal ions Whiteboard exercise Play

Acidity reaction (hydrolysis) of metal ions Student activity Play

Acids (1) Whiteboard exercise Play

Acids (1) Student activity Play

Acids (2) Student activity Play

Acids and alkalis Class activity Play

Across the periodic table Student activity Play

Active transport Student activity Play

Addition of strong base to an ammonium buffer Animation Play

Additional information contained in chemical equations Student activity Play

Alkaline earth metals Slideshow Play

Alkaline earth metals Student activity Play