The Ever-Evolving World of Science — Class 7 Science
Curiosity · Chapter 1
CBSE Class 7 community
View all
7- Mathematics
- Science
- + 3 more
- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
2- Mathematics
- Social Science
- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
- Space weighted by chapter size
- Charts from the book's own data
- Traps corrected
Chapter summary
Key ideas & terms
- Science as a process
- The idea that science is a way of thinking that welcomes curiosity, asks questions, and stays open to the unknown, rather than just a collection of facts.
- Curiosity
- The drive to wonder and ask "Why?" and "How?", treated as the spark that lights the flame of exploration.
- Observation
- Carefully noticing things in the world, often the starting point of scientific discovery, as when early inventors studied bird wings.
- Experiment
- A hands-on test or activity used to explore an idea, sometimes raising more questions than it answers.
- Interconnection of sciences
- The principle that physics, chemistry, biology, and earth science are linked, so ideas in one area inspire questions in another.
- Responsibility
- The understanding that human activities are connected to the natural world, and that science can help create a more sustainable world.
Extra questions & answers
How does the chapter describe science — as facts or as a process?
Science is described as a process: a way of thinking that welcomes curiosity, asks questions, and is open to the unknown, not merely a textbook of facts.
What do the butterfly and paper plane on the page numbers symbolise?
They symbolise how learning takes flight when curiosity leads the way, just as a butterfly flutters freely and a paper plane soars into the sky.
How did something as simple as a paper plane connect to real science?
The dream of flying began with simple observations and experiments, from early inventors studying bird wings to modern engineers designing aircraft.
What kinds of deeper questions does the chapter say Grade 7 will explore?
Questions such as how things work, why events happen the way they do, and what we can learn from the patterns we see in nature.
Why does the chapter encourage stepping out of the classroom?
Because experiencing the world through activities and experiments leads to a deeper understanding of our environment and our place on the planet.
According to the chapter, how are the different fields of science related?
They are all interconnected — scientific ideas in one area, such as physics, often inspire discoveries or new questions in another, such as biology.
What examples of changes does the chapter say we will study this year?
Reversible and irreversible changes such as ice melting into water, fruits ripening, batteries running out, and rocks breaking into pebbles.
How did early humans tell the time before clocks?
They observed the shadows of objects cast by the Sun and used the changing position of the shadows to tell the time.
What is the aim of Activity 1.1, "Question the Answer"?
To train students to think like scientists by inventing curious, creative questions that could lead to a given answer, since great scientists ask amazing questions.
What link does the chapter make between discovery and responsibility?
It explains that human activities are linked to the natural world, so science is not only about discovery but also about responsibility for a sustainable world.
Activity 1.1: Question the Answer
Question: ________________? Answer: Just add some milk.
Creative question: Why does my tea taste so bitter and strong after I brewed it for too long? Answer justification: Adding milk can make strong, bitter tea milder and smoother, so 'Just add some milk' is a sensible and fun reply.
Question: ________________? Answer: Because the cat's teeth were crooked.
Creative question: Why could the little cat not bite through its food properly and had to visit the animal dentist? Answer justification: Crooked teeth would make it difficult for the cat to chew, so this answer explains the cat's trouble in a playful way.
Question: ________________? Answer: Don't panic, I have my towel.
Creative question: What will you do when your friend spills water on the desk and starts worrying that the books will get wet? Answer justification: Having a towel ready shows you are prepared to clean the spill quickly, so there is no need to panic.
Question: ________________? Answer: 42
Creative question: How many marbles will you have if you collect 6 marbles every day for one full week? Answer justification: Collecting 6 marbles for 7 days gives