Pi is a number used in maths used to work out the circumference of a circle (the distance around the outside) or the radius (the distance from the edge of…
Science has got itself a really bad name. Some people are afraid of science, and think of scientists as people who ‘play God’. Other people think that science is something…
Soil erosion is the loss of healthy and fertile topsoil through water or wind, leaving behind poorer quality subsoil. Soil erosion can lead to famine in developing countries, because the…
Like animals and humans, plants need water, air and food to grow. They get all of these from their growing medium – the compost or soil that they grow in….
A Möbius strip is a loop of paper with a twist in it, that behaves in a very odd way. How to Make a Möbius Strip Take a strip of…
Traditionally, science – particularly chemistry and physics, as well as maths, computing and technology – has been a male-dominated area. Girls may not be interested in science as a study…
A sunspot is a cooler area on the surface of the sun, which shows up as a patch that is darker than the rest of the sun’s surface. A sunspot…
Oil and water are described as immiscible liquids – liquids that do stay mixed together (see ‘Why Oil and Water Don’t Mix’). Even if oil and water are thoroughly shaken…
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…