Class VI NCERT solutions The Wonderful World of Science

(Sample answer)

Once, my mobile phone stopped charging. I followed these steps:

1. Observation: The phone was not charging when plugged in.
2. Question: Why is it not charging?
3. Hypothesis: Maybe the charging cable is broken.
4. Experiment: I tested the cable with another phone — it worked fine.
5. New Hypothesis: The charger port might be dirty.
6. Testing: I carefully cleaned the port and tried again — it started charging!

This process of guessing and testing helped me solve the problem, just like the scientific method.

(Sample answer)

One day, my mother noticed the rice wasn\'t cooking properly in the cooker.

• Observation: Rice was still hard after the normal cooking time.
• Hypothesis: Maybe the water added was less than required.
• Experiment: She added more water and tried again.
• Result: This time the rice cooked perfectly.

She observed, made a guess (hypothesis), tested it, and found a solution — all steps of the scientific method.

My question: Why do leaves turn yellow in autumn?

1. I would observe when and how the leaves change colour.
2. Search books or ask my science teacher.
3. Read about chlorophyll and how it breaks down in cold weather.
4. Compare leaves from different seasons.

Science is a way of thinking, observing, and experimenting to understand the world we live in and uncover the secrets of the universe.

Curiosity is the starting point of all scientific discovery. It drives us to ask questions, explore, and find out how things work.

Science is like a never-ending jigsaw puzzle. Every new discovery adds a piece and helps us understand the world better. But each discovery also leads to more questions, so the puzzle keeps growing!

Science is found in every aspect of daily life — cooking food, boiling water, growing plants, using mobiles, travelling, exploring space. It helps us understand everything around us.

If unanswered, we repeat the steps.

Earth is the only known planet that supports life because it has air, water, suitable temperature, and a favourable environment.

Everyday problem-solving — fixing a pen, troubleshooting a light bulb — mirrors the scientific method. We observe, guess, test, and find solutions. This makes everyone a scientist in daily life!

Scientists work in teams to combine diverse ideas and skills, tackle complex problems efficiently, share knowledge, and make discoveries more impactful.

• Watching a flower bloom
• A caterpillar transforming into a butterfly
• Clouds forming before rain
• A seed growing into a plant
• Water turning to ice when cooled

This means asking questions is the key to gaining knowledge. A person who constantly asks \"Why?\" and \"How?\" is curious and more likely to learn and become wise.