The bean crop farmer didn’t use nitrogen fertiliser because legumes like beans have root nodules that contain nitrogen-fixing bacteria. These bacteria naturally enrich the soil with nitrogen, reducing the need for additional fertilisers. Class 8 Science Grade 8 Chapter 2 The ...
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Cell structures like the nucleus, cytoplasm and cell membrane are crucial. The nucleus controls activities, cytoplasm supports life processes and membranes regulate material flow, protecting and maintaining cell function. Class 8 NCERT Science Curiosity Chapter 2 The Invisible Living World: Beyond ...
This activity demonstrates the principle of magnification. It shows how curved glass surfaces filled with water can bend light to enlarge the appearance of objects like letters in a book. Class 8 Science Curiosity Textbook Chapter 2 The Invisible Living World ...
To stay healthy, the body needs nutritious food, regular exercise, clean water, proper rest and good hygiene. Vaccines and medicines help fight infections by strengthening our immune system or destroying harmful microbes. Class 8 Science Curiosity Grade 8 Chapter 1 Exploring ...
Simply learning facts means memorizing them without context. Learning to find facts teaches students to explore, observe, ask questions and understand where knowledge comes from. It builds skills like reasoning, discovery and investigation beyond just remembering. Class 8 NCERT Science Curiosity ...