Conductivity Student activity Play

Constructing the graph of the sine function Animation Play

Constructing the graph of the tangent function Animation Play

Constructing the simplest mathematical model Whiteboard exercise Play

Cosmology Animation Play

Crystal lattice of covalent compounds Student activity Play

Crystal lattice of NaCl Simulation Play

Curved space Student activity Play

d- and f-block elements Animation Play

Description of oscillations Student activity Play

Determination of formulae of compounds Whiteboard exercise Play

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

Determining the electron configuration on the basis of the periodic table Whiteboard exercise Play

Determining the empirical formula Student activity Play

Determining the molecular formula Student activity Play

Development of atomic theory. Radioactivity Whiteboard presentation Play

Development of atomic theory. Radioactivity Class activity Play

Dinitrogen pentoxide Simulation Play

Direct proportionality models Whiteboard exercise Play

Direct proportionality models Student activity Play

Discovering bases Whiteboard exercise Play

Discovering bases Student activity Play

Dissociation of acids Whiteboard exercise Play

Dissociation of acids Student activity Play

Dmitri Mendeleev and the first periodic table Animation Play