# Instant blue

The iodine clock reaction investigates how mixtures at different temperatures and concentrations influence the rate at which two components combine.

# Instant-Freeze Water

Freeze water instantly by sharply knocking a bottle of supercooled liquid water. It may look like magic, but there's some pretty cool science behind it.

# Fire Vortex

Analyse the behaviour of fire tornados which occur naturally in forest fires by building your own fire vortex. Be amazed by this physics phenomenon!

# The Four Colour Theorem

The four colour theorem is a mathematical result from Graph Theory which says that any map can be coloured with four colours or less...

# The Monty Hall Problem

The Monty Hall Problem is a mathematical logical puzzle framed in terms of a game show. You are offered 3 doors, behind one of which lies a car, and behind the remaining doors 2 goats.

# Collapsing Metal Can WIP

Exerting a change in pressure in a metal can by creating a vacuum inside, resulting in an implosion caused by the atmospheric pressure.

# Ice-Tray Battery WIP

Build an actual, working battery, using simple materials commonly found at home.

# Bed of Nails

Discover the science behind a famous magic trick: lying on a bed of nails! Is it a trick after all?

# Invisible Glass WIP

Understand the fascinating science of refractive indices by making glass disappear in a transparent liquid. This easy experiment will leave you speechless.

# Seven-Layer Density Column WIP

Experiment with the science of density by stacking different liquids in order to make a colourful tower.

# Hydrogen balloon

Store in a balloon the light (Hydrogen) gas produced from a chemical reaction. This gas will combust in the presence of oxygen, causing a small explosion to occur.

What are electromagnets and why do we use them? Discover the physics of electromagnetism by turning a nail into a magnet using simple, household materials.

# Exploring Mobius Strips WIP

Mobius strips are truly fascinating. Created using tape and paper, these objects are a great way of introducing surfaces and edges.

# Brown’s Criterion WIP

Brown’s Criterion is an application of a result in Mathematics which takes advantage of the fact that numbers can be uniquely written in base 2.

# Arduino Tilt Sensor WIP

Discover how tilt sensors work by building your own circuit using an Arduino board. Learn the science behind these nifty sensors. Starter code available.

# Colour Mixing with an RGB LED [Arduino] WIP

Mix some colours using an Arduino Uno to control an RGB LED. Introduction to microcontroller programming. Sample code available. Great for beginners!

# Capacitor Electrostatic Discharge WIP

DIY capacitor able to produce miniature lightning bolts with voltage in the thousand-volt range.