The movement of hot and cold air is known as convection current.

A tornado is a whirling wind circling around a high pressure centre.

_____ is a whirling wind, circling around a low-pressure center.

Cold air goes up but hot air comes down. 

The centre of a cyclone is called the eye.

A tornado forms when unstable air is lifted vertically up. 

Solve the following puzzle.

Across

3. A hazard causing destruction.  

4. It is the centre of a cyclone.

5. A cyclone is called a _____ in America.

Down

1. A device to measure wind speed.

2. This term means season in Arabic.