The derivative Class activity Play

The different passage of time Whiteboard exercise Play

The different passage of time Student activity Play

The direction and rate of osmosis Simulation Play

The economic meaning of reaction rate Whiteboard exercise Play

The effect of pressure on a chemical equilibrium Whiteboard exercise Play

The effect of surface area on reaction rate Student activity Play

The effect of surface area on reaction rate Whiteboard exercise Play

The effect of temperature on an endothermic reaction Animation Play

The effects of external factors on the rate of transpiration Whiteboard exercise Play

The effects of external factors on the rate of transpiration Student activity Play

The effects of osmosis on the rate of transpiration Whiteboard exercise Play

The effects of osmosis on the rate of transpiration Simulation Play

The effects of osmosis on the rate of transpiration Student activity Play

The effects of sunlight and soil water on the rate of transpiration Simulation Play

The effects of sunlight and soil water on the rate of transpiration Student activity Play

The effects of temperature on the rate of photosynthesis Student activity Play

The energetic diagram for alkane combustion Animation Play

The energy changes during the course of a chemical reaction Animation Play

The energy due to nuclear fission Whiteboard exercise Play

The energy due to nuclear fission Student activity Play

The enzyme-catalysed reaction Whiteboard exercise Play

The enzyme–substrate complex Animation Play

The equation for a redox reaction Animation Play

The equilibrium constant Whiteboard exercise Play