How fast do radioactive elements decay? Student activity Play

How plants obtain the substances necessary for life Slideshow Play

How to calculate the specific heat capacity of a substance Animation Play

How to find out whether a given material is a pure substance or a mixture? Animation Play

Hybridization Student activity Play

Hybridization and genetic probes Animation Play

Increasing the concentrations of reacting substances Animation Play

Influence of the concentrations of substances on the position of equilibrium Illustration Play

Investigating the electrical conductivity of substances Simulation Play

Investigating the electrical conductivity of substances Student activity Play

Is every oily substance a fat? Animation Play

Isotope therapy Student activity Play

Isotope therapy Whiteboard exercise Play

Le Chatelier's principle Student activity Play

Measurement of the volume of gas during decomposition of a substance Animation Play

Modern atomic model Student activity Play

Molar interpretation of chemical equations Whiteboard exercise Play

Molar interpretation of chemical equations (1) Student activity Play

Molar volume Whiteboard exercise Play

Molar volume (1) Student activity Play

Molar volume (2) Student activity Play

Motion with constant acceleration Student activity Play

Natural radiation Student activity Play

Natural radioactivity Slideshow Play

Natural water Student activity Play