Unless it is something that has a soft and wobbly structure, like a jellyfish, all animals, including humans, have a stiff skeleton to support their muscles and other body tissues,…
Bread and butter go together naturally (especially freshly made bread still warm from the oven). There are records of butter making from around 4000 years ago. Butter usually comes from…
After a while, even the best and most carefully polished silver becomes dull and tarnished, and needs to be cleaned again. Why does it tarnish, and how can it be…
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…
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…
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…
Tessellation is the covering of a surface with repeating patterns of regular or irregular shapes that fit together exactly (interlock), with no gaps or overlaps. The earliest tessellations discovered date…
A clinometer (also known as a declinometer or inclinometer) is used to measure the steepness of a slope, and can be used to work out the heights of tall things,…
Some children take to science likes ducks to water, but others seem to just decide that they ‘don’t like science’, which might be because they are scared off by the…
