Addition of elements to alkenes Student activity Play

Alloys of gold Animation Play

Catalytic converters Slideshow Play

Chemical equations Student activity Play

Groups in the periodic table Student activity Play

Halogen lights Illustration Play

Motorisation and our environment Student activity Play

Names and symbols of elements Student activity Play

Names and symbols of elements Animation Play

Nitrogen oxides and smog Student activity Play

Non-metals Student activity Play

Preventing smog Animation Play

Properties of metals Class activity Play

Properties of non-metals Animation Play

Reactions occurring on the surface of a solid catalyst Student activity Play

Reduction of aldehydes and ketones Animation Play

Reduction of aldehydes and ketones (1) Student activity Play

The addition of hydrogen to alkenes Animation Play

What happens inside catalytic converters? Animation Play

What percentage is it? Student activity Play