Chemical formula


Interactive Chemistry Worksheets for Students


Periodic table

Naming compounds

Basic formula

Simple compounds

Ionic compounds 1

Ionic compounds 2

Chemical suffixes

Old chemical names

Hydrocarbons - Alkanes

Alkanes, alkenes & alkynes

Alkanols to alkanoic acids


Common compounds

Common formula quiz

Acids, bases and salts

Covalent compounds

Printable worksheets


Formula calculators

Chemical formula calculator





Naming chemical compounds




Naming chemical symbols



Student lessons

Teacher resources

Group 1 of the periodic table contains the alkali metals. They all have a low density and can float on water, they have low melting points and are very soft - you can cut them with a knife. They are however, extremely reactive.

The following video demonstrates the violent nature of the chemical reactions of the alkali series of metals with water.

A simple mixture of flour and water produces a a non-Newtonian fluid. This fluid has unusual properties. The greater the force that is applied to it the more rigid it becomes and the more it behaves like a solid. As the force is reduced on the fluid it becomes more liquid and runny.

This is an amazing video which demonstrates the unusual properties of a mixture of flour and water.