NCERT Class 7 Science Chapter 1
The Ever-Evolving World of Science
This chapter introduces CBSE Class 7 students to the nature of science as a continuously growing body of knowledge. It explores how scientific discoveries are made through observation, experimentation, and inquiry, and how science shapes our understanding of the natural world. Students learn about the history of key scientific breakthroughs and the importance of a scientific temper in everyday life.
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Key Terms
- Scientific Method
- A systematic process of observation, hypothesis formation, experimentation, and conclusion used to investigate natural phenomena.
- Hypothesis
- A testable, educated guess or proposed explanation made on the basis of limited evidence, used as a starting point for further investigation.
- Observation
- The act of carefully watching and noting facts or occurrences using the senses or scientific instruments.
- Experiment
- A controlled procedure carried out to test a hypothesis and gather data under specific conditions.
- Scientific Temper
- A habit of thinking rationally and questioning beliefs based on evidence and logical reasoning rather than superstition.
- Technology
- The practical application of scientific knowledge to solve real-world problems and create useful tools or processes.
Frequently Asked Questions
What is the scientific method in Class 7 Science?▾
The scientific method is a step-by-step approach used by scientists that involves making observations, forming a hypothesis, conducting experiments, collecting data, and drawing conclusions. It ensures that findings are reliable and repeatable.
How does science keep evolving?▾
Science evolves as new observations and experiments challenge or refine existing theories. New technologies allow scientists to explore areas previously out of reach, leading to updated understanding of the world.
What is the difference between science and technology?▾
Science is the systematic study of the natural world through observation and experimentation, while technology is the application of scientific knowledge to create tools and solutions for practical problems.
Why is scientific temper important for students?▾
Scientific temper encourages students to question, reason, and seek evidence before accepting claims. It helps develop critical thinking and protects against misinformation and superstition.
What are some famous scientific discoveries mentioned in Class 7 Curiosity?▾
The chapter highlights discoveries such as gravity by Newton, germ theory by Pasteur, and the heliocentric model by Copernicus as examples of how science has evolved through history.
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