Handling liquids Class activity Play

Hardness index of water Animation Play

Hardness of diamond Animation Play

Hardness of graphite Animation Play

Hardness of rocks and the rate of erosion Animation Play

Hardness of solids Student activity Play

Hardness of solids Simulation Play

Hardness of water Whiteboard exercise Play

Hardness of water Animation Play

Hardness of water Student activity Play

How many more? Whiteboard exercise Play

How many more? Student activity Play

How sedimentary rocks are formed Slideshow Play

How to identify rocks? Animation Play

Identification of rocks Whiteboard exercise Play

Identification of rocks Student activity Play

Identifying minerals found in rocks Animation Play

Living with HIV Student activity Play

Macromolecular crystals Student activity Play

Macromolecular crystals as gemstones Slideshow Play

Multiplication rule – two choices Student activity Play

Natural water (2) Student activity Play

Natural waters Whiteboard presentation Play

Natural waters Class activity Play

Performing a flame test Animation Play