2-D representations of 3-D objects on triangular dotty paper Student activity Play

A folded sheet of paper Animation Play

A hole in a piece of paper Animation Play

A symmetrical triangle on non-squared paper Student activity Play

A symmetrical triangle on squared paper Whiteboard exercise Play

A symmetrical triangle on squared paper Student activity Play

A thickness measuring device Animation Play

Acids (2) Whiteboard exercise Play

Acids (2) Student activity Play

Amorphous solids Student activity Play

Application of enzymes Slideshow Play

Application of radioactive isotopes Student activity Play

Areas of similar figures Student activity Play

Atomic number and mass number Student activity Play

Biologically important transition metal complexes Student activity Play

Calcium carbonate Slideshow Play

Cast iron Slideshow Play

Cellulose Animation Play

Changing the redox properties of the central ion Animation Play

Co-ordination number. Shapes of complex ions Animation Play

Cobalamin and chlorophyll Animation Play

Colour of complex ions Student activity Play

Coloured compounds Student activity Play

Colours of universal indicator paper Whiteboard exercise Play

Complex ions Student activity Play