Enlargements in the coordinate system Student activity Play

Enlargements with negative scales Student activity Play

Enlargements with negative scales Whiteboard exercise Play

Enthalpy Whiteboard exercise Play

Enthalpy change does not depend on the reaction pathway Animation Play

Enthalpy of solution. Part 1 Student activity Play

Entropy and spontaneous changes Student activity Play

Entropy change in the surroundings Animation Play

Equation of a straight line Whiteboard presentation Play

Equation of a straight line Whiteboard presentation Play

Equation of a straight line Class activity Play

Equation of a straight line Class activity Play

Estimating the gradient Student activity Play

Estimating the gradient of a curve Whiteboard exercise Play

Even and odd number of negative signs Whiteboard exercise Play

Existence of  nth root of a given number Whiteboard exercise Play

Experimental proof for the existence of dipole–dipole forces Student activity Play

Experimental proof for the existence of dipole–dipole forces Slideshow Play

Factors affecting the lattice enthalpy Animation Play

Find the difference Student activity Play

Finding a gradient of a straight line given in general form Whiteboard exercise Play

Finding gradients of straight lines Animation Play

Finding gradients, tangents and normals Whiteboard presentation Play

Finding gradients, tangents and normals Class activity Play

Finding intersection points Whiteboard exercise Play