The parallelogram rule Student activity Play

The periodic table Class activity Play

The periodic table Whiteboard presentation Play

The plant cell Slideshow Play

The plant cell Student activity Play

The properties of chemical compounds and their constituent elements Student activity Play

The properties of chemical compounds and their constituent elements Slideshow Play

The reactions that occur in a gaseous mixture of AB and CD molecules Whiteboard exercise Play

The reactivity series Animation Play

The reactivity series of metals Student activity Play

The relationship between the electronegativity of elements and the chemical properties of their compounds Student activity Play

The resulting vector Animation Play

The solubility in water Animation Play

The stability of alkaline-earth-metal carbonates Student activity Play

The structural formula of the hydrocarbon Whiteboard exercise Play

The sum of four vectors Whiteboard exercise Play

The sum of vectors Animation Play

The total displacement Animation Play

The unusual properties of beryllium Animation Play

The unusual properties of beryllium Student activity Play

The velocity and acceleration of a pendulum Animation Play

The velocity and acceleration of a pendulum Student activity Play

The velocity and acceleration of a pendulum Animation Play

The velocity and acceleration of a pendulum Whiteboard exercise Play

The viscosity Whiteboard exercise Play