Social Sciences: Class 5 — Chapter 10: Earth—Our Shared Home

10.1 The Blue Planet

From space, the Earth looks completely one, with no visible borders, states, or countries. It is our shared home, often referred to as the Blue Planet due to the vast oceans covering its surface.

Inspirational Perspectives from Space

  • Group Captain Shubhanshu Shukla (the first Indian to reach the International Space Station) shared: "After seeing the Earth from outside... the Earth looks completely one, no border is visible... We all are part of humanity and the Earth is our one home."
  • Wing Commander Rakesh Sharma (the first Indian in space), when asked how India looked from above, famously replied: "Saare Jahaan Se Achcha" (the best in the entire world).

Understanding Our Address

While we have local addresses (house number, street, city, district, state, country), our ultimate global address is the planet Earth. To help locate places digitally, India uses DIGIPIN, a 10-character digital code that acts as a unique name tag for every small location, helping emergency services and postal delivery find addresses faster.

10.2 Nature Has No Boundaries

When viewed from above, nature shows no political boundaries. Elements like air, water, clouds, seeds, and animals move freely across the globe. Humanity is deeply connected through nature, trade, travel, and shared culture.

Story 1: The Travelling Birds (Migration)

Every winter, Rosy Starlings (pink and black birds) fly thousands of kilometres from the southern parts of Russia, Mongolia, and neighbouring regions to India. They benefit Indian ecosystems by:

  • Enjoying the warm winter weather of India.
  • Feeding on locusts and grasshoppers, thereby acting as natural pest control for farmers' crops.
10.3 Global Exchange of Culture, Food, and Practices

Many elements of our daily lives—from the food we eat to the practices we follow—have crossed borders and connected different cultures over centuries.

Story 2: Yoga — India's Gift to the World

Practised in India for more than 3,000 years to keep the body healthy and mind peaceful, Yoga was shared globally by travellers, scholars, and teachers. In 2014, the United Nations declared 21 June as the International Day of Yoga, celebrated by millions worldwide.

Story 3: Chilli — A Spice from South America

Chilli plants were originally native only to South America. Around 400 to 500 years ago, Portuguese travellers brought chillies to India. Before their arrival, Indians used black pepper to add spice to their food. Today, chillies are an indispensable part of Indian cuisine.

Story 4: The Sweet Story of Sugar

While chillies came to India, sugar travelled from India to the rest of the world. Ancient populations used honey for sweetness until India discovered the method of making jaggery and refining it into sugar from sugarcane juice. Other Indian agricultural gifts to the world include rice, mangoes, and bananas.

Story 5: The Mexican Marigold

The vibrant orange and yellow marigold flower originated in Mexico, where it is used in traditional festivals. It travelled to India, finding a new home in Indian temples, weddings, and major festivals like Diwali.

Story 6: Indian Cows in Brazil

Portuguese traders took Indian cow breeds to Brazil because they were strong, produced high-quality milk, and easily adapted to the tropical climate. Today, more than three-fourths of Brazil's milk comes from three Indian breeds: Gir, Kankrej, and Ongole. These cows are so highly valued that they feature on Brazilian stamps and coins.

10.4 One Earth, One Family

An ancient Indian philosophy encapsulates global unity: 'Vasudhaiva Kutumbakam', which translates to 'the world is one family.'

10.5 Seasons' Journal: Observing Nature

To understand the interconnectedness of our shared home, students are encouraged to maintain a seasonal journal across four terms (April–June, July–September, October–December, January–March) tracking five core themes: