Biological washing powders Whiteboard exercise Play

Biological washing powders Student activity Play

Enzymes in washing powders Animation Play

Fibres and fabrics Slideshow Play

Fresnel lens Animation Play

Investigation of the destructive properties of sulphuric(VI) acid Slideshow Play

Ironing and hydrogen bonds Animation Play

Other uses of halogens and their compounds Student activity Play

Poly(ethylene terephthalate), PET Student activity Play

Polyester thread and fabric Slideshow Play

Properties of acids Student activity Play

Reaction between nitric(V) acid and protein Animation Play

Secondary structure of proteins Student activity Play

Supportive tissue Student activity Play

The bleaching properties of chlorine Simulation Play

The defects of lenses Student activity Play

The price of fabric Whiteboard exercise Play

The structure of a lens Student activity Play

The structure of a lens Animation Play

The structure of a lens Whiteboard exercise Play

What are algebraic expressions used for? Student activity Play

What are algebraic expressions used for? Whiteboard exercise Play