The derivative Whiteboard presentation Play

The derivative Class activity Play

The different rates of chemical reactions Whiteboard exercise Play

The different rates of chemical reactions Animation Play

The different rates of chemical reactions Student activity Play

The Doppler effect Animation Play

The Doppler effect Student activity Play

The Doppler effect Simulation Play

The Doppler effect Whiteboard exercise Play

The effect of concentrations of reactants and products on chemical equilibrium Animation Play

The effect of pressure on a chemical equilibrium Whiteboard exercise Play

The effect of pressure on chemical equilibrium Animation Play

The efficiency of a motor Animation Play

The efficiency of a motor Student activity Play

The electronegativity concept Student activity Play

The electronegativity of elements and the chemical properties of their compounds Whiteboard exercise Play

The energy change for the synthesis of HCl Whiteboard exercise Play

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

The energy levels of hydrogen atom Simulation Play

The energy levels of hydrogen atom Student activity Play

The enthalpy change for the transformation of solid sulphur into gaseous sulphide ions Whiteboard exercise Play

The enthalpy change of a system Animation Play

The enthalpy of solution Animation Play

The equilibrium for the decomposition of hydrogen iodide Animation Play

The exponential law of decay Illustration Play