Free Science courses

This page describes the reaction between alcohols and metallic sodium, and takes a very brief......

This page looks at some typical reactions of diazonium ions, including examples of both......

This page takes a very brief look at what happens if the code in DNA becomes changed in some......

This page continues looking at the names of organic compounds containing chains of carbon atoms.......

This page gives you the facts and simple, uncluttered mechanisms for the electrophilic......

A simple view In any introductory chemistry course you will have come across the......

This page builds on your understanding of the acid catalysed dehydration of alcohols. You have to......

This page looks at the phase diagrams for non-ideal mixtures of liquids, and introduces the idea......

This page has a brief look at some of the more important uses of the simple alcohols like......

This page deals with Raoult's Law and how it applies to mixtures of two volatile liquids. It......

This page looks at how the information coded in messenger RNA is used to build protein chains. It......

It only takes one biological cell to create an organism. In fact, there are countless species......

Through millions of years of evolution, animals living in an aquatic environment have diversified......

If you have jumped straight to this page, you may wish to look at the previous page about DNA......

Running water freshwater communities are also known as lotic communities, lotic meaning......

A plant requires water as an essential ingredient of photolysis, the photochemical stage......

Muscle cells are specialized to generate force and movement. There are three types of muscle......

When Charles Darwin was in the Galapagos islands, one of the first things he noticed is the......

The previous page investigates the process of meiosis , where 4 haploid gametes are created from......

Plants that live partially or completely submerged in water are deemed hydrophytes . A form......