Repeated percentage change Class activity Play

Repeated percentage change Whiteboard presentation Play

Retina Student activity Play

Retina Whiteboard exercise Play

Reversing the percentage change Student activity Play

Reversing the percentage change Whiteboard exercise Play

RGB matrix Whiteboard exercise Play

Rocks and minerals Student activity Play

Rutherford's experiment Animation Play

Sedimentary rocks Student activity Play

Seeing colours Animation Play

Seeing colours Slideshow Play

Sensation; perception and activation thresholds Student activity Play

Sensation; perception and activation thresholds Slideshow Play

Slope of a line Student activity Play

Soap bubble Animation Play

Solid-liquid phase change Whiteboard exercise Play

Solid-liquid phase change Student activity Play

Solubility Animation Play

Solving problems involving percentages Whiteboard presentation Play

Solving problems involving percentages Class activity Play

Something to eat and drink in the Internet Café Student activity Play

Something to eat and drink in the Internet Café Whiteboard exercise Play

Sound Whiteboard presentation Play

Sound Class activity Play