Plants grown from seeds, from the smallest (an orchid, at 85 micrometers long) to the largest (the Coco de Mer palm, at about 30 cm long). Seeds are amazing things…
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….
Seeds contain the potential to be a whole new plant, and just need a bit of water, care and attention, as well as a bit of time, to grow. Seeds…
Growing plants without soil is known as hydroponics. Plants can be grown in many different growing mediums, such as, gravel, sand, perlite, vermiculite, rockwool, clay pellets, bark or coconut fibre,…
Water solidifies or turns to ice at zero degrees centigrade. This experiment makes something that looks just like ice but forms at room temperature and gives off heat. The experiment…
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…
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…
Maths can’t really reveal the secret of telepathy (reading people’s minds), but some clever maths tricks make it seem like it is possible. Some of these will need a calculator….
Knot theory is the study of knots. As well as being useful to hold things together, knots and knot theory are important in different areas of science, including biology and…
