This chapter explains that science is the study of the natural world that helps us understand how various things happen around us. We use science when we observe our surroundings, ask questions, and perform experiments to find clear and reliable answers. From ancient times, humans have used scientific thinking to make life better. Early humans discovered fire, invented simple tools, and learned farming by observing nature. As time passed, science led to great inventions such as the wheel, electricity, machines, medicines, and modern communication devices, all of which have made our lives more comfortable and efficient.
Key Points
Science is the systematic study of the natural world through observation, questioning, and experiments.
It helps us understand phenomena like day and night, seasons, rain, growth of plants, electricity, magnets, etc.
Early humans used observation and experience to survive (fire, tools, farming).
Scientific inventions (wheel, electricity, medicines, communication, machines) have transformed human life.
Science is not only about facts but also about curiosity, asking “why” and “how.”
Branches of science: Physics (matter, energy, motion), Chemistry (materials, substances), Biology (plants, animals, humans).
Technology applies science in practical life—mobiles, computers, transport, medicines, agriculture, etc.
Science improves quality of life but must be used responsibly to avoid pollution, overuse of resources, and harmful technologies.
Curiosity, questioning, and critical thinking are the first steps toward learning science.
👉 👉Science begins with curiosity. By asking questions and exploring answers, we can improve life, but we must use science wisely and responsibly for the good of people and nature.