Science Class 8
Pressure, Winds, Storms, and Cyclones
Pressure is force over area. Wind blows from high to low. Storms bring lightning.
14 lessons · ~81 min total
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Lessons in this topic
- 0 Start here Pressure, the air that presses on us, and how wind, storms and cyclones start. · 3 min You are here
- 1 The same push, spread out Pressure is force divided by area. The same force on a smaller area presses harder. · 6 min
- 2 A liquid presses too A liquid presses on its bottom and its sides. A taller column presses harder. · 6 min
- 3 The air presses on everything Air has weight, so the atmosphere presses on everything in every direction. · 6 min
- 4 Why nobody feels it Air presses on us from all sides, and the pressure inside our body balances it. · 6 min
- 5 From the harder press to the softer one Air moves from high pressure to low pressure. Moving air is wind. · 6 min
- 6 Where a wind gets started Warm air rises and leaves low pressure. Cooler air moves in. That is wind. · 6 min
- 7 A breeze that turns around Land warms faster than the sea, so coastal winds change direction between day and night. · 6 min
- 8 How a cyclone grows Over a warm sea, moist air rises and a cyclone can form. · 6 min
- 9 Fast air, low pressure Fast air has lower pressure than still air beside it. The higher pressure pushes things towards it. · 6 min
- 10 Lightning, thunder and staying safe Charge builds in a storm cloud, then flows as lightning. The hot air makes thunder. · 8 min
- 11 Checkpoint: fast air and storms A graded check on fast air, thunder and staying safe. · 5 min
- 12 The big picture Ten ideas about pressure, wind and storms. · 4 min
- 13 Track quiz The ten rules from the labs, then questions on each idea. · 7 min
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