Why is the sky blue?

The sky looks blue but really it is made up of all the colours as you see on the rainbow. Each of these colours has a different wavelength. Some of these are smoother while others are choppy. Blue light waves travel in short, choppy waves. Like each of the other colours, blue light waves are…

What is light?

You might have read about sunlight in your textbooks. Yes, sunlight is our major source of light. There are other sources of light which we have at our homes like the bulb, lamp, candle etc. It is important to know that we cannot see things and living beings around us without the presence of light.  Watch…

What is a Tsunami?

Tsunami is a Japanese word for Harbor Wave or Tidal Wave. It is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean. It is caused by an underwater earthquake, volcanic eruption or other underwater explosions. You can look up for, the tsunami…

Garden under the lake

Do water theme parks fascinate you? Well, this place is bit different. The Green Park in Austria is more than a theme park. It is the most relaxing and calm garden turned into a water body during the summers. Snow melts from the Hochschwab mountains and floods the green lake in Austria during the summers.…