Intersection points of the graph of a function with the axes Whiteboard exercise Play

Intersection points of two circles Whiteboard exercise Play

Intersection points of two circles Student activity Play

Intersection points of two straight lines Student activity Play

Investigating the melting point of a metal and a non-metal Whiteboard exercise Play

Investigating the melting point of a metal and a non-metal Student activity Play

Ionic crystals Student activity Play

Iron and its history Slideshow Play

Iron extraction Student activity Play

Iron, the most common metal Student activity Play

Isoelectric points of alfa-amino acids Chart Play

Labelling the heating curve for ice Whiteboard exercise Play

Latent heat of fusion Whiteboard exercise Play

Latent heat of fusion Student activity Play

Latent heat of fusion Animation Play

Lattice formation enthalpy Student activity Play

Lattice formation enthalpy and melting points of ionic compounds Illustration Play

Lattice points on a disc Student activity Play

Lattice points on a disc Simulation Play

Line through two given points Whiteboard exercise Play

Line through two given points Student activity Play

Lines, rays and segments Student activity Play

Liquid-vapour equilibrium Student activity Play

Local extrema and critical points Whiteboard exercise Play

Local extrema and critical points Student activity Play