Physics

Make a Vacuum Cleaner

Originally, carpets and rugs were cleaned by lifting them, taking them outside, hanging them over a line and beating them with a carpet beater (a very dusty job), or by…

Seeing Ultraviolet Light: Tonic Water in Sunlight

Ultraviolet (UV) light is an invisible part of light. It has a shorter wavelength than violet light (see ‘Making a Rainbow: Breaking Light Into Colour’), and its name means ‘beyond…

Growing Stalactites and Stalagmites

Stalactites and stalagmites are formations of rock in underground caves. They are formed when calcium carbonate and other minerals dissolve in water running through the soil and rocks. As the…

Melting Points for Different Solids

Different solids turn into liquids (melt) at different temperatures. This temperature is described as the melting point. Some solids are made up of molecules that bind together tightly and others…

The Physics of Bubbles

Whether they are in a bubble bath or drifting on the wind, bubbles are beautiful and fun things. Try making your own to examine the amazing properties of the simple…

Warm and Cold: Heavy Water

Hot water has more energy than cold water. This makes the water molecules move around more. Molecules that move more take up more space, but still weigh the same, so…

Warm and Cold: Expanding Air

As air gets warm, the air molecules have more energy and move around more, taking up more space. As the warm air expands, it becomes less dense (see ‘Floating and…

Action and Reaction: Balloons in Flight

Sir Isaac Newton was born in 1643 and died in 1727. He was a physicist, mathematician, astronomer, biologist and chemist. Newton developed three laws of motion, which described how things…

Pulling and Pushing: Magnetic Attraction

Magnets are attracted to some metals, and can attract and repel each other. The earth has a magnetic field, and so magnets can be used to find directions. Magnets and…

Science & Inventions Writing Pr...
Science & Inventions Writing Prompts
DISCOVERY, INFORMATION & GUIDANCE for Kids