Knowledge To Kids

Snow is frozen water vapour. During the process of crystallization, these crystals are carried up and down in the atmosphere by air curre...

When water falls on iron, it reacts with the oxygen in the water and forms iron oxide. This is rust. The drop of water turns reddish in c...

In general, there are two types of winds. Those that are local and those that go long distances over the earth. The winds on the seashor...

In areas of the Earth’s crust there are places where there is a weakness. In these regions, the crust has not settled down firmly, and th...

The centre of the earth is hot and molten. The temperature rises as we go deeper form the surface. When rocks melt, they expand, creating...