NCERT Class 7 Geography Chapter 3: Our Changing Earth YouTube Lecture Handouts

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NCERT Class 7 Geography Chapter 3: Our Changing Earth

Evolution of Landforms

Illustration: Evolution of Landforms

Volcano

Vulcanicity, Volcanoes - Types and 5 Basis for Classification

Illustration: Volcano

Earthquakes

Illustration: Earthquakes

Earthquake Preparedness

  • Measured by Richter Scale
  • Safe Spot – Under a kitchen counter, table or desk, against an inside corner or wall.
  • Stay Away from – Fire places, areas around chimneys, windows that shatter including mirrors and picture frames.
  • Be Prepared – Spread awareness amongst your friends and family members and face any disaster confidently.
  • Earthquakes - Causes, Distribution, Impact & 4 Types of Waves

Weathering & Erosion

Water (River) Action

Sea Action

Coastal Landforms (By Waves & Currents) : 18 Erosional & 18 Depositional Features

Illustration: Water (River) Action

Glaciers

Wind Action

✍ Manishika

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