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…
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…
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…
Heat travels in three different ways – conduction (heat travelling through a solid), convection (heat travelling through liquids and gases) and radiation (heat travelling through empty spaces). Detecting Fake Silver:…
A tornado is a violent storm, usually with a twisting funnel of wind extending from a cloud down to the ground. The wind in a tornado is usually 40-110 miles…
Everyone is talking about climate change. As global temperatures rise, this will lead to melting of glaciers and sea ice. If this causes a rise in sea levels, this will…
El Niño, or the ENSO (El Niño Southern Oscillation), is a pattern of weather changes that usually occur around Christmas. El Niño means ‘the little boy’ or ‘the Christ Child’….
White light is made up of a mixture of different colours (see ‘Making a Rainbow: Breaking Light Into Colour’). Light travels in waves, and different colours have different wavelengths. Things…
As light passes through transparent objects, it bends. This can create optical illusions like disappearing bowls, bending pencils and mirages. This is called refraction, and is useful in magnifying glasses…
