Iron extraction Student activity Play

Irreversible reactions Slideshow Play

Irreversible reactions Slideshow Play

Isotopes of oxygen Whiteboard exercise Play

Lactic acid Animation Play

Lactic acid Slideshow Play

Le Chatelier's principle for gas reactions Whiteboard exercise Play

Le Chatelier's principle for gas reactions Student activity Play

Least useful chemical reactions Student activity Play

Lewis structures (dot diagrams) for atoms Animation Play

Ligand exchange reactions Class activity Play

Ligand exchange reactions Whiteboard presentation Play

Ligand types Student activity Play

Light phase and dark phase of photosynthesis Whiteboard exercise Play

Light phase and dark phase of photosynthesis Student activity Play

Light phase and dark phase of photosynthesis Animation Play

Liquefying of oxygen and nitrogen Illustration Play

Low oxygen levels Student activity Play

Magnesium oxide Animation Play

Magnesium oxide Student activity Play

Main process Animation Play

Making steel Student activity Play

Making steel Whiteboard exercise Play

Mass spectra of diatomic elements Animation Play

Mass spectra of the elements Student activity Play