Boiling an egg

Once water reaches boiling point when cooking eggs does it matter if heat is turned down?

Changes in the state of materials (clip compilation)

A range of materials which have been mixed, burnt, melted and cooled.

Changing materials - rust

Rust is created by the chemical reaction of iron, water and oxygen.

Chemical reactions in cooking food

How chemical reactions are useful in cooking and help to improve the taste of food.

Freezing point and boiling point

A demonstration of freezing and boiling points and standard measurements of temperature.

Glass blowing

How does heat change materials? Includes footage of a glass blower working with glass.

How to make gunge

A demonstration of the trial and error method for making the right consistency of gunge.

How to make gunge (signed)

A demonstration of the trial and error method for making the right consistency of gunge.

Joseph Priestley – the discovery of gases (signed)

Joseph Priestley describes his work and his discovery of carbon dioxide and oxygen.

Melting metals

Objects made from different metals are melted in a furnace and then poured into casts.

3 learner guides

We have a selection of learner guides