Paper is mainly composed of cellulose fibers, primarily from wood, but also from recycled paper pulp or other plant materials. Cellulose is a polysaccharide, a...
The balloon is made from latex, an elastic and flexible material. Latex is extracted from the rubber tree, a tree native to South America. This...
Many imagine that earthworms come to the surface when it rains to avoid drowning underground. This is not entirely accurate; worms breathe through their skin...
When you prepare bread dough, you add yeast. This yeast is actually made up of microscopic organisms: baker's yeast, fungi that love to eat the...
Mountains are mainly formed by the movement of tectonic plates. When two plates converge, an oceanic plate can be forced to dive under a continental...
Plants that close when touched have a fascinating reaction mechanism. This phenomenon is generally due to rapid movements of cells located in certain parts of...
Lemon is a citrus fruit known for its strong acidic taste, attributable to its content of organic acids. The main acids present in lemon are...
Specular reflection is simply when a ray of light bounces off a smooth surface rather than passing through it or being absorbed. For a mirror...
Gemstones, such as diamonds, sapphires, emeralds, or rubies, are composed of different chemical elements that give them their unique characteristics. For example, diamonds are mainly...
Cumulonimbus clouds generally form when there is strong atmospheric convection. This convection process is triggered by a temperature difference between the ground and the air...
