Health effects of dioxins Slideshow Play

Heating and cooling curves. Melting and boiling points Whiteboard exercise Play

Heating and cooling curves. Melting and boiling points Student activity Play

Heating up a substance Student activity Play

Heating up a substance Whiteboard exercise Play

Heavy metals Animation Play

Homolytic fission of non-polar bonds. Free radical reactions Student activity Play

How can we check whether a given substance is an element or a compound? Animation Play

How dispersion forces work Animation Play

How food chains work 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

Human organ systems Class activity 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

Le Chatelier's principle Student activity Play

Lungs Illustration Play

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

Mercury Slideshow Play

Metabolism of toxic substances in the liver Slideshow Play

Molar interpretation of chemical equations Whiteboard exercise Play