Chapter 1 Important Questions: The Wonderful World of Science

✔ Correct Answer: (b) A way of thinking, observing and doing things to understand the world

As defined in the chapter, science is a way of thinking, observing and doing things to understand the world we live in and to uncover the secrets of the universe. It is not just memorising facts.

✔ Correct Answer: (c) Observing something interesting or not understood

The scientific method begins with observation. We first notice something interesting or puzzling before we can ask a question or make a guess about it.

✔ Correct Answer: (c) The ink had finished

In the pen example, the first guess (hypothesis) was that the ink had finished. This was then tested by opening the pen and checking the ink refill.

✔ Correct Answer: (c) Curiosity

The chapter clearly states that the most important thing for learning science is Curiosity, which is also where the title of the book Curiosity comes from.

✔ Correct Answer: (b) A giant and unending jigsaw puzzle

The chapter says, "Science is like a giant and unending jigsaw puzzle." Every new discovery adds another piece, and there is no limit to what we can discover.

✔ Correct Answer: (b) Scientific method in daily life

The chapter uses the bicycle repair person as an example to show that the scientific method is applied in daily life — they observe the problem, ask why the tyre is flat, guess possible causes, and test them.

✔ Correct Answer: (d) Testing the guess through experiments or more observations

After making a guess (hypothesis), the next step in the scientific method is to test that guess through experiments or more observations to see if it is correct.

✔ Correct Answer: (c) People who follow the scientific method to solve problems or discover new things

The chapter defines scientists as people who follow the scientific method. It also says that anyone who follows the scientific method is working like a scientist.

✔ Correct Answer: (c) Science is rarely done alone and scientists often work in large teams

The chapter explicitly states, "Science is rarely done alone. Scientists across the world work together, often in large teams." Collaboration is an important part of scientific work.

✔ Correct Answer: (b) It changes our understanding, like moving a wrongly placed puzzle piece

The chapter says, "Sometimes, we find that a piece of this puzzle has been put in the wrong place and needs to be moved. New discoveries often change our understanding of the world."

Curiosity. The book is titled Curiosity because curiosity is described as the most important quality for learning science — being curious makes us observe our surroundings and ask questions.

Scientific method. The scientific method is the structured process scientists (and anyone solving problems) use: observe, question, guess, test, and analyse results.

Guess. After wondering and forming a question, we guess (make a hypothesis about) a possible answer, which we then test through experiments or observations.

Supports. The chapter states that Earth is the only planet we know that supports life, and it has an environment that we must protect.

Analyse. The last step of the scientific method is to analyse the results — this means carefully examining what happened during the experiment to see if our guess was correct.

False. The chapter clearly states that science is not just about memorising facts and figures or doing experiments — it is about following a step-by-step scientific method to find answers to questions.

True. The chapter explicitly says, "anyone who follows the scientific method is working like a scientist" — this includes cooks, repair persons, electricians, and students.

False. According to the chapter, "every new piece of knowledge leads to more questions and more things to find out" — science is an unending jigsaw puzzle that keeps growing.

False. The chapter gives everyday examples — a cook, a bicycle repair person, and an electrician — to show that the scientific method is applied in daily life by ordinary people, not just in labs.

True. The chapter states, "to be able to learn science well, the first and foremost thing is to be curious and observe your surroundings keenly" — curiosity drives questioning and discovery.

This match shows each step of the scientific method applied to the pen example from the chapter.

All these examples from the chapter show daily-life applications of the scientific method.

Box 3 = Guess (Hypothesis)

In the scientific method flow chart:

$\text{Observe} \rightarrow \text{Wonder/Question} \rightarrow \textbf{Guess} \rightarrow \text{Test} \rightarrow \text{Analyse}$

Box 3 represents making a guess (possible answer) to the question formed in Box 2.

Missing Stage = Analyse the Results

In the circular diagram of the scientific method:

$\text{Observe} \rightarrow \text{Question} \rightarrow \text{Guess} \rightarrow \text{Test} \rightarrow \textbf{Analyse Results}$

The stage after testing is to analyse the results to see if they answer the original question.

Science is a way of thinking, observing and doing things to understand the world we live in and to uncover the secrets of the universe. It involves asking questions, exploring the world, and trying to understand how things work.

The scientific method is a step-by-step process of finding answers to questions. Two key steps are:

• Observation — noticing something interesting or not understood

• Guessing — thinking of a possible answer (hypothesis) to the question formed

Scientists are people who follow the scientific method to solve problems or to discover new things. Yes, anyone who follows the scientific method — like a cook, repair person, or student — is working like a scientist, according to the chapter.

Science is compared to a giant and unending jigsaw puzzle because every new discovery adds another piece to our understanding, and there is no limit to what we can find out. Every new piece of knowledge leads to more questions, making the puzzle endless.

Two daily-life examples from the chapter are:

1. A cook wondering why dal spilled out of the cooker — was there too much water?

2. A bicycle repair person trying to find out why a tyre is flat — from where did the air leak out?

Observation is the act of noticing or watching something interesting or not understood — it is based on what we actually see or experience. A guess (hypothesis) is a possible answer we think of after observing and forming a question — it has not yet been tested.

Testing a guess is important to check whether our hypothesis is actually correct or not. If the guess turns out to be wrong, we make another guess and test that too — just like in the pen example where the second guess was that the ink had dried up.

According to the chapter, science is rarely done alone. Scientists across the world work together, often in large teams. Collaboration makes discovery more effective and enjoyable, and the chapter encourages students to ask friends for help too.

Two topics mentioned in the chapter are:

1. Why stars shine — the mystery of the night sky that science helps unravel.

2. How and why it rains — the water cycle and properties of water that science explains.

The chapter says that new discoveries often change our understanding of the world. Like a jigsaw puzzle piece placed in the wrong spot that needs to be moved, sometimes a new discovery shows that our previous understanding was incorrect and needs to be revised.

The five steps of the scientific method applied to the pen example are:

This shows how the scientific method is a cycle — if the first guess is wrong, we make and test another guess.

Three daily-life examples of the scientific method:

1. Cook — wondering why dal spilled out of the cooker; guessing there was too much water; reducing water next time.

2. Bicycle repair person — noticing a flat tyre; guessing there is a puncture; testing by dipping the tube in water to find the leak.

3. Electrician — seeing a bulb not working; guessing the bulb is fused; testing by replacing the bulb.

Steps in the electrician example:

$\text{Observe (bulb off)} \rightarrow \text{Question (why?)} \rightarrow \text{Guess (fused bulb)} \rightarrow \text{Test (replace bulb)} \rightarrow \text{Analyse (light comes on = correct guess)}$

The chapter explains this through the metaphor of science as an unending jigsaw puzzle — each discovery adds a piece but also reveals new gaps, generating more questions. For example, when we discover why it rains (water evaporates and condenses), it leads to new questions: Why does water evaporate faster in heat? What causes clouds to form? This shows that knowledge is not final — it keeps expanding. New discoveries sometimes even change our old understanding, making the journey of science truly endless and exciting.

Curiosity and keen observation are the foundation of science. Curiosity drives us to ask how and why about things around us — like why stars shine or how a seed grows. Keen observation helps us notice details that others might miss, which is the first step of the scientific method. Together, these qualities make a student:

• Ask meaningful questions about the world

• Notice patterns and puzzles in daily life

• Approach problems systematically using the scientific method

The chapter says, "when we are curious, we start posing questions" — and questions are the engine of all scientific discovery.

Three topics and related questions from the chapter:

These questions show the spirit of inquiry that the chapter encourages. Science helps us find answers to such questions through the scientific method — observing, questioning, guessing, testing, and analysing.

The Scientific Method — A Detailed Description

The scientific method is a step-by-step process used to find reliable answers to questions about the world. It is the foundation of how science works.

$\text{Observe} \rightarrow \text{Wonder/Question} \rightarrow \text{Guess} \rightarrow \text{Test} \rightarrow \text{Analyse}$

Steps in Detail:

How it differs from memorising facts:

Memorising facts means simply learning and repeating information without understanding. The scientific method involves active thinking, questioning, and testing — it helps us discover facts rather than just remember them.

Original Example — Why does a plant wilt?

1. Observe: A potted plant at home looks wilted and drooping.

2. Question: Why is the plant wilting?

3. Guess: Maybe the plant has not been watered and is lacking water.

4. Test: Water the plant and observe it over the next few hours.

5. Analyse: If the plant becomes upright and fresh, the guess was correct. If it remains wilted, make a new guess (e.g., too much direct sunlight) and test again.

This example shows that the scientific method is a cycle — if one guess is wrong, we form another. It makes us think like scientists in everyday life. The chapter rightly says that anyone who follows the scientific method is working like a scientist.

Science — Its Meaning, Importance and Presence Everywhere

Definition:

$\text{Science} = \text{a way of thinking, observing and doing things to understand the world}$

Science helps us uncover the secrets of the universe — from tiny grains of sand to massive mountains, from kitchen cooking to outer space.

Science in Daily Life:

Importance of Science:

• It helps us understand the natural world around us.

• It solves problems in everyday life (e.g., understanding disease, food, water).

• It develops our ability to think critically and ask questions.

• New scientific knowledge changes and improves our way of life.

• It helps us protect our environment, the only known planet that supports life.

Why science is a 'joyful exploration':

The chapter compares learning science to children enjoying the rain — it is not a burden but a source of wonder and joy. Every question leads to discovery, every discovery leads to more questions. Science is like an unending jigsaw puzzle where:

$\text{New discovery} \Rightarrow \text{New questions} \Rightarrow \text{More exploration}$

There is no final answer — the journey of science is infinite, collaborative, and full of excitement. As the chapter says, "keep exploring and never stop wondering about the amazing mysteries of the universe."

Flow Diagram of the Scientific Method

Diagram Description (Draw and Label):

Draw five rectangular boxes arranged vertically with downward arrows connecting each box. Label them as follows:

• Box 1: OBSERVATION

• Arrow down →

• Box 2: WONDERING AND QUESTIONING

• Arrow down →

• Box 3: GUESSING (HYPOTHESIS)

• Arrow down →

• Box 4: TESTING (EXPERIMENT / MORE OBSERVATION)

• Arrow down →

• Box 5: ANALYSING RESULTS

• Arrow curved back to Box 1 (labelled: "If guess is wrong, start again")

The curved arrow back to Box 1 shows that the scientific method is a cycle.

$\text{Observe} \rightarrow \text{Question} \rightarrow \text{Guess} \rightarrow \text{Test} \rightarrow \text{Analyse} \xrightarrow{\text{if wrong}} \text{New Guess}$

Description of Each Step:

Connection between steps:

• Observation leads to a question because something unexplained needs an answer.

• The question leads to a guess because we try to think of a reason.

• The guess must be tested because we cannot know if it is right without checking.

• Testing gives results that we analyse to confirm or reject the guess.

• If the guess is wrong, the cycle begins again with a new guess.

This shows that the scientific method is systematic, logical, and self-correcting — making it the most reliable way to find answers to questions about the world.

Scientific Investigation: Why Are Plants in One Corner Taller?

Step 1 — Observation:

I notice that the plants near the window (Corner A) are growing taller and healthier than the plants in the dark corner (Corner B). This is interesting and I do not fully understand why.

Step 2 — Questioning:

I ask: Why are the plants in Corner A growing taller than those in Corner B?

Step 3 — Guessing (Hypothesis):

I guess that the plants in Corner A receive more sunlight from the window, and sunlight is helping them grow taller.

$\text{Hypothesis: More sunlight} \Rightarrow \text{Faster/taller plant growth}$

Step 4 — Testing:

I design a test:

• Take two identical plants of the same species, same size, and same soil.

• Place Plant 1 near the window (sunlight).

• Place Plant 2 in the dark corner (no sunlight).

• Give both plants the same amount of water every day.

• Measure the height of both plants every day for two weeks and record the data.

Step 5 — Analysing Results:

Plant 1 (with sunlight) grew much taller than Plant 2 (without sunlight). This supports my guess — sunlight is an important factor for plant growth. My hypothesis is correct.

Conclusion:

Plants grow taller when they receive adequate sunlight. This investigation shows how the scientific method helps us find reliable answers through observation, questioning, testing, and analysis — just as described in the chapter.

The Nature of Science — Scope, Limits, and Student Attitude

Scope of Science:

Science covers an extraordinarily wide range of topics — from the tiniest grain of sand to the vastness of outer space. The chapter lists many areas:

$\text{Scope of Science} = \text{Everything from the ocean floor to outer space}$

Limits and Honest Attitude:

The chapter honestly tells students that they will not find answers to all questions in Grade 6. Science is a five-year (and beyond) journey. Students should:

• Not worry if they cannot find an answer immediately

• Understand that science builds gradually, with each year adding more knowledge

• Accept that some questions are still unsolved even by the world's best scientists

Why Science is Collaborative:

The chapter states that "science is rarely done alone" — scientists work in large international teams. This is because:

• Complex problems need diverse thinking

• Experiments need to be verified by others

• Sharing knowledge accelerates discovery

Students are encouraged to ask friends for help: "It is always more fun to discover things together."

Science as a Never-Ending Journey:

Like an unending jigsaw puzzle, every answer opens new questions:

$\text{Discovery} \Rightarrow \text{New Knowledge} \Rightarrow \text{New Questions} \Rightarrow \text{More Discovery}$

Sometimes old knowledge is revised when new discoveries show it was incomplete. This makes science self-correcting and ever-growing.

Ideal Student Attitude:

• Be curious and observe keenly

• Ask how and why about everything

• Enjoy the process — "joyful exploration" like children enjoying the rain

• Never stop wondering about the amazing mysteries of the universe