A Lewis dot-and-cross diagram of a fluorine molecule Animation Play

A Lewis dot-and-cross diagram of a hydrogen chloride molecule Animation Play

Acid-base reactions of metal ions Whiteboard presentation Play

Acid-base reactions of metal ions Class activity Play

Chemical elements in biological structures Whiteboard exercise Play

Chemical elements in biological structures Student activity Play

Covalent bonding Whiteboard exercise Play

Covalent bonding (2) Student activity Play

Covalent bonding. Part I Whiteboard presentation Play

Covalent bonding. Part I Class activity Play

Determining the electron configuration on the basis of the periodic table Student activity Play

Different structures Animation Play

Different structures of the eye Slideshow Play

Different structures of the eye Student activity Play

Electrophiles as Lewis acids Animation Play

Electrophiles, nucleophiles and carbocations Student activity Play

Examples of covalent compounds with various internal structures Whiteboard exercise Play

Examples of covalent compounds with various internal structures Student activity Play

Gene structures and their functions Whiteboard exercise Play

Geometry of molecules Whiteboard exercise Play

Great extinctions Student activity Play

Isolation of DNA from other cell structures Animation Play

Lewis dot-and-cross diagram for a hydrogen molecule Animation Play

Lewis dot-and-cross diagram for a water molecule Animation Play

Lewis dot-and-cross diagram of a hydrogen iodide molecule Animation Play