The buoyant force and the weight of a body Student activity Play

The cell – the basic unit of life Slideshow Play

The de Broglie hypothesis Animation Play

The de Broglie hypothesis Student activity Play

The density of a ball of uranium Whiteboard exercise Play

The density of a solid body Animation Play

The density of a solid substance Animation Play

The density of matter inside the atomic nucleus of arsenic Whiteboard exercise Play

The density of matter inside the atomic nucleus of cobalt Whiteboard exercise Play

The density of matter inside the atomic nucleus of vanadium Whiteboard exercise Play

The determination of the empirical formula of a compound Whiteboard exercise Play

The determination of the empirical formula of ammonia Animation Play

The eaves of the cottage roof Whiteboard exercise Play

The effect of the centrifugal force Animation Play

The elementary particles Illustration Play

The energy due to nuclear fission Student activity Play

The energy of decay Animation Play

The energy required for the extraction Whiteboard exercise Play

The enthalpy of solution Animation Play

The factors determining radioactivity Simulation Play

The factors determining radioactivity Student activity Play

The First and the Third Law of Motion Class activity Play

The First and the Third Law of Motion Whiteboard presentation Play

The force of gravity depends on the distance Student activity Play

The force of gravity depends on the distance Whiteboard exercise Play