Chapter 1: The Wonderful World of Science

Example Answer: One day, my bicycle tyre looked flat and the cycle was hard to ride. I noticed the tyre was losing air, which made me want to find out where the air was leaking from. This was a simple everyday problem I tried to solve by observing and thinking carefully.

Example Answer: First, I carefully looked at the tyre to find the source of the air leak. Then I dipped the tyre in water and noticed bubbles forming at a small hole, which told me exactly where the leak was. I took the cycle to a repair shop and got that spot patched, and the tyre held air again. These steps — observing, guessing, testing, and checking — are similar to the scientific method.

Example Answer: A cook noticed that the dal kept spilling out of the pressure cooker. She wondered if too much water was the reason, so she tried adding less water the next time — this was her way of testing her guess. When the dal no longer spilled, she concluded that the water level had been too high. This is a perfect example of the scientific method being used in everyday cooking without the person even knowing it.

Example Answer: I would ask, 'Why do leaves change colour and fall from trees in autumn?' This question interests me because I see it happen every year but I do not fully understand what causes it. Curiosity like this is exactly what drives scientific thinking and discovery.

Example Answer: First, I would carefully observe the trees and note when and how the colour change happens. Then I would make a guess — maybe trees lose leaves to save water and energy during cold months. I would read books, search reliable sources, and talk to my science teacher to check if my guess is correct. Finally, I would analyse all the information I gathered to see if it answers my question.