Topic Details (Notes format)

Winds, Storms, and Cyclones

Subject: General Science

Book: NCERT Science Class 7

The movement of air causes **winds**, and severe disturbances in wind patterns lead to **storms** and **cyclones**.
- **How Wind is Formed**: Air moves from high-pressure to low-pressure areas due to heating and cooling.
- **Storms and Cyclones**:
- Storms are strong winds with rain.
- Cyclones are circular wind systems with very high speed, formed over warm ocean waters.
- **Effects of Cyclones**:
- Causes floods and destruction.
- Can damage houses, power lines, and crops.
- **Precautions During Cyclones**:
- Move to safe areas.
- Listen to weather warnings.
- Avoid going near the sea.

**Possible Exam Questions:**
1. How are cyclones formed?
2. What are the major effects of cyclones on human life?
3. What precautions should be taken during a storm?
4. How does heating of land and water affect wind movement?
5. Discuss the role of the Indian Meteorological Department (IMD) in cyclone warnings.