Procedure for detection of ammonium ions Whiteboard exercise Play

Purification of water Student activity Play

Quaternary ammonium salts Whiteboard exercise Play

Quaternary ammonium salts Student activity Play

Role of cations in plant cells Slideshow Play

Role of macro-elements absorbed as cations Student activity Play

Salt hydrolysis Whiteboard exercise Play

Salt hydrolysis Student activity Play

Salts of strong acids and weak bases Student activity Play

Soaps Student activity Play

Soil as a source of minerals Student activity Play

Solubility of salts Student activity Play

Solubility of salts Whiteboard exercise Play

Structure and properties of amines Whiteboard presentation Play

Structure and properties of amines Class activity Play

Structure and properties of quaternary ammonium salts Animation Play

Substances essential for the growth of plants Student activity Play

Tertiary treatment Animation Play

Testing for ions Whiteboard presentation Play

Testing for ions Class activity Play

The circulation of matter in the environment Student activity Play

The elements of life Student activity Play

The elements of life Whiteboard exercise Play

The phosphorus cycle Animation Play

The placenta Student activity Play