Lipids – the energy source of the cell Student activity Play

Liver and pancreas Animation Play

Lungs Illustration Play

Main fractions of crude oil Illustration Play

Main uses of crude oil fractions Slideshow Play

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

Major sources of energy Slideshow Play

Mammals Whiteboard exercise Play

Mammary gland Illustration Play

Non-renewable energy resources Student activity Play

Oil and water Slideshow Play

Oil spill cleanup Animation Play

Oil spills Student activity Play

Oil spills Whiteboard exercise Play

Opposing action of the two divisions of the autonomic nervous system Whiteboard exercise Play

Opposing action of the two divisions of the autonomic nervous system Student activity Play

Opposing actions of the divisions of the ANS Animation Play

Origin of crude oil (1) Student activity Play

Origin of crude oil (1) Whiteboard exercise Play

Origin of crude oil (2) Whiteboard exercise Play

Origin of crude oil (2) Student activity Play

Particle theory Class activity Play

Parts of the small intestine wall Illustration Play

Percentages of fatty acids in a plant fat and animal fat Illustration Play

Petroleum as the source of hydrocarbons Whiteboard presentation Play