CBSE · Class 8 · Science · Chapter 13
Our Home: Earth, a Unique Life Sustaining Planet
Understand the conditions that make Earth suitable for life and the need to protect its interconnected natural systems.
Start chapterLessons in this chapter
- 1Earth Among the PlanetsCompare Earth with its planetary neighbours and discover why temperature depends on more than distance from the Sun.
- 2Conditions That Make Earth HabitableConnect liquid water, gravity, atmosphere, and protective shields to understand Earth’s habitability.
- 3Earth’s Interconnected Life-support SystemsFollow exchanges among air, water, land, and organisms to see how Earth sustains life.
- 4Continuity of Life and Asexual ReproductionDiscover how inherited information connects generations and how new organisms can develop without the fusion of gametes.
- 5Sexual Reproduction in Plants and AnimalsFollow gametes through fertilisation and development, comparing flowers, seeds, eggs, and young animals.
- 6Threats to Life and Protecting Our PlanetConnect climate change, biodiversity loss, and pollution with the actions that help protect Earth’s life-support systems.
- 7Summary & PracticeRevise the whole chapter, connect habitability with life’s continuity, and practise explaining evidence and environmental decisions.