The graph of the sine function Student activity Play

The graph of the tangent function Student activity Play

The ground state and excited states of an atom Student activity Play

The ground state and excited states of an atom Whiteboard exercise Play

The history of the periodic table Animation Play

The history of the periodic table Animation Play

The inner structure of the atom Student activity Play

The ionic character of s-block-metal compounds Student activity Play

The law of periodicity and the properties of elements Animation Play

The locations of metals in the periodic table Whiteboard exercise Play

The locations of metals in the periodic table Student activity Play

The locations of metals in the periodic table Animation Play

The marks for a project Animation Play

The model of propane Illustration Play

The modern periodic table Student activity Play

The modern periodic table Animation Play

The modern periodic table Whiteboard exercise Play

The modern periodic table Whiteboard exercise Play

The modern periodic table (1) Student activity Play

The modern periodic table (2) Student activity Play

The molar mass Student activity Play

The molecular mass of water Animation Play

The Moon as a periodic model Animation Play

The movement of the water wheel Whiteboard exercise Play

The octet rule Animation Play