Hydrocarbons as fuel Class activity Play

Identifying oxidation–reduction reactions Student activity Play

Incinerators Slideshow Play

Initiation of methane combustion reaction Slideshow Play

Insulin and glucagon affect glucose metabolism Simulation Play

Internal combustion engine Animation Play

Internal combustion engine Animation Play

Is it easy to distinguish between a physical change and a chemical change? Student activity Play

Lactic acid Simulation Play

Lactose-free milk Illustration Play

Least useful chemical reactions Student activity Play

Life processes Class activity Play

Light phase and dark phase of photosynthesis Student activity Play

Light phase and dark phase of photosynthesis Whiteboard exercise Play

Lipids – structure; function and sources in food Student activity Play

Lipids – the energy source of the cell Whiteboard exercise Play

Lipids – the energy source of the cell Student activity Play

Living things Slideshow Play

Localisation of the median Student activity Play

Low level of glucose Animation Play

Lowering of blood glucose level after a meal Animation Play

Maintenance of a constant blood glucose level – role of the liver Student activity Play

Maintenance of a constant blood glucose level – role of the liver Simulation Play

Mass percent concentration Whiteboard exercise Play

Mass percent concentration Student activity Play