WORKSHEET 2 ( WINDS, STORMS AND CYCLONES, CLASS 7)

 Chapter 8 : Winds, Storms and Cyclones

 Q1. Fill in the blanks:

 1. _____________________ around us exerts pressure.

 2. Difference of temperature between two regions sets ___________ in air. 

3. Increased wind speed is accompanied by __________ air pressure.

 4. Air moves from the region where the air pressure is _________ to the region where the pressure is _______________. 

5. Air _______________on heating and __________ on cooling. 

6. The warm air is ____________ than the cold air. 

7. Uneven heating on the earth is the main cause of ______________ 

8. Winds carrying ______________ bring rain.

 9. The word monsoon is derived from the Arabic word ___________ which means season. 

10. The monsoon winds carry ____________ and it rains. 

11. Falling water droplets along with rising air create lightning and sound and is known as _______________ 

12. High speed winds and air pressure difference can cause ________________________ 

13. The calm area in the centre of a cyclone is called __________ 

14. A cyclone is called a _______________ in the American continent and _____________in Japan and Philippines. 

Q2. Name the following 

1. A dark funnel shaped cloud that reaches from the sky to the ground. 

2. The instrument that measures the wind speed 

3. Two modern technologies that help us to monitor cyclones. 

4. The coastline of India that is more vulnerable to cyclones.

  Q3 Choose the correct answer: 

1. In India, monsoon wind blows in south west direction in (summer/winter). 

2. In winter, the direction of wind is from (land to ocean/ocean to land).

 3. A cyclone watch is issued ( 24/48 ) hours in advance of any expected storm.

 4. (Thunderstorms/tornadoes) are frequent in India.