Ability to react with carbonates Animation Play

Abundance of chemical elements in nature Student activity Play

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

Acids (2) Student activity Play

Acids and alkalis Class activity Play

Adverse effects of acid rain Slideshow Play

Alkaline earth metals Slideshow Play

Alkaline earth metals Student activity Play

Analysis of the products of total combustion Slideshow Play

Application of calcium hydroxide Animation Play

Aqueous solutions of bases Whiteboard exercise Play

Atomic number Whiteboard exercise Play

Atomic number Student activity Play

Balancing chemical equations and stoichiometry Animation Play

Biological weathering Student activity Play

Blast furnance Illustration Play

Bones and joints rebuilding Animation Play

Boundary between organic and inorganic chemistry Animation Play

Calcium carbonate Slideshow Play

Calcium carbonate cycle Animation Play

Calcium fluoride Animation Play

Calcium ions enter the synaptic knob Animation Play

Calculations involving the reactions of metals and water Student activity Play

Calculations involving the reactions of metals and water Whiteboard exercise Play

Can water wear away rock? Whiteboard exercise Play