grass

Construction Worker Climbing A Ladder Up To The Roof

Ladder

Ladders were invented more than 10000 years ago. Ladders are used by fighter pilots, firemen, army soldiers and many other people. Most ladders are made from aluminium. Ladders can be made of other materials like wood, strong grass and rope. Some countries have strict rules and regulations concerning safety when Read more…

By KidsEngCollege Editorial Team, ago
3D Rendered Scientific Illustration Of Some Bacteria

Bacteria

Bacteria are the smallest living organisms known to exist. Bacteria can come in all sorts of shapes and sizes. Not all kinds of bacteria will cause disease.  In fact there is some good bacteria in your digestive system. Cows use bacteria to digest the grass they eat. Bacteria can be found everywhere. Read more…

By KidsEngCollege Editorial Team, ago