Safety in the chemical laboratory Class activity Play

Safety in the chemical laboratory Whiteboard presentation Play

Smelting lead Animation Play

Solid substances as catalysts in reactions in the gaseous phase Animation Play

Spontaneous chemical modifications of nitrogenous bases Slideshow Play

Standard enthalpies of combustion for selected substances Chart Play

Standard entropy values Animation Play

State of chemical equilibrium Animation Play

State of sample substances at room temperature Whiteboard exercise Play

Statements about chemical reactions Whiteboard exercise Play

Statements about least useful chemical reactions Whiteboard exercise Play

Statements about the importance of chemical reactions Whiteboard exercise Play

Statements about types of chemical reactions Whiteboard exercise Play

Static equilibrium and dynamic equilibrium Audio text Play

Storage substances and storage organs in plants Student activity Play

Storage substances and storage organs in plants – fats Whiteboard exercise Play

Storage substances and storage organs in plants – proteins Whiteboard exercise Play

Storage substances and storage organs in plants – starch Whiteboard exercise Play

Storage substances and storage organs in plants – sucrose Whiteboard exercise Play

Storage substances in plants Slideshow Play

Structural and molecular formulae of chemical compounds Animation Play

Structure and functions of the plasma membrane Student activity Play

Structure determination by chemical methods: an example Animation Play

Substances dangerous for environment Slideshow Play

Substances essential for the growth of plants Student activity Play