Science Project Ideas

Invisible Ink

Invisible ink, sometimes called ‘sympathetic ink’, is a way of writing secret messages. Spies have used invisible inks to pass on secret messages, as have prisoners and hostages. Invisible Messages…

Friction: Keeping Warm and Keeping Rolling

Friction is the force that acts between two moving surfaces and tries to stop them moving. Friction can be between two solids, a solid and a liquid, or a solid…

Soap and Detergent Chemistry

Soap is made from animal fats and vegetable oils, mixed with a caustic chemical called sodium hydroxide (also known as lye). The sodium hydroxide reacts with the oil to make…

Floating and Sinking: Looking at Density

Density describes how much something weighs relating to its size. For example, a cubic centimetre of cork weighs less (is less dense) than a cubic centimetre of lead (which is…

Ice Cream: Colloidal Chemistry

What is a summer without ice cream cones, or a slice of apple pie without a melting scoop of vanilla ice cream? Though it looks simple – cream, milk, sugar…

Static Electricity: Making Things Stick

Atoms (the tiny building blocks that make everything) contain protons, which have a positive charge, and electrons, which have a negative charge. Some electrons are fixed onto the atoms quite…

Making a Rainbow: Breaking Light Into Colour

Sunlight isn’t just white – it’s actually made of a mixture of different colours. As light travels through water or glass, it changes speed, which makes it bend (see ‘Bending…

How Seeds Grow

A seed is a minute dormant plant that is waiting for the right conditions to grow (germinate). Seeds range from orchid seeds weighing a millionth of a gram to seeds…

Water & Food: How Plants Eat and Drink

Plants need water. Water in the cells helps plants to grow and make food, makes leaves and stems firm (a plant that needs watering wilts), and carries minerals from the…

DISCOVERY, INFORMATION & GUIDANCE for Kids