CBSE · Class 10 · Science · Chapter 13

Our Environment

Understand ecosystems, food chains, energy flow, environmental problems and responsible management of waste.

8 lessons 35 min
Start chapter

Lessons in this chapter

  1. 1Eco-system — What Are Its Components?An ecosystem is basically nature’s group project, and everyone—including the soil—has a role.
  2. 2Producers, Consumers And DecomposersPlants cook, animals eat, decomposers clean up: the ecosystem’s job chart is surprisingly organised.
  3. 3Food Chains And WebsEnergy moves up the food chain, but most of it quietly leaves before reaching the top.
  4. 4Biological MagnificationTiny amounts of persistent chemicals can become a very big problem by the top of a food chain.
  5. 5How Do Our Activities Affect The Environment? — Ozone Layer And How It Is Getting DepletedOzone is harmful in the wrong place and lifesaving in the right one—location really matters.
  6. 6Managing The Garbage We ProduceSome waste disappears with biological help; plastic mostly refuses to take the hint.
  7. 7Waste Disposal And Environmental ChoicesThrowing waste away is easy; deciding where 'away' should actually be is the difficult part.
  8. 8Chapter Summary and PracticeEcosystems, energy, ozone and waste all return for one final environmental reality check.
← All Class 10 Science chapters