Conservation of mass (1) Whiteboard exercise Play

Construction of voltaic cell Whiteboard exercise Play

Cooper–zinc cell Animation Play

Covalent bonding (2) Student activity Play

Covalent bonding. Part I Class activity Play

Covalent bonding. Part I Whiteboard presentation Play

Covalent bonding. Part II Class activity Play

Covalent bonding. Part II Whiteboard presentation Play

Crude oil Student activity Play

Crude oil Whiteboard exercise Play

Crystal lattice of covalent compounds Student activity Play

Current and electrical charge Student activity Play

Cycloalkanes Student activity Play

Decay reaction Whiteboard exercise Play

Densities of straight-chain alkanes Illustration Play

Density Whiteboard presentation Play

Density Class activity Play

Density of carbon dioxide Animation Play

Density of gases Whiteboard exercise Play

Density of gases Student activity Play

Depletion of the Earth's ozone layer Student activity Play

Depletion of the ozone layer Slideshow Play

Detecting carbon dioxide Animation Play

Detection of carbon dioxide Animation Play

Detection of carbon dioxide in air Slideshow Play