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Exploration : Entering the World of Secondary Science — NCERT Solutions

CBSE · Class 9 · Science

NCERT Solutions for Exploration : Entering the World of Secondary Science, CBSE Class 9 Science: 2 textbook questions solved step by step.

55 questions68 flashcards5 concepts

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A flowchart illustrating the processes by which matter changes from one state to another (solid, liquid, gas) and the conditions (temperature, pressure) that facilitate these changes.
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2 Questions Solved · 1 Section

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Pause and Ponder

1Think of a prediction you or your family made recently (for example, the outcome of a cricket match). Was it based on evidence and reasoning, or mainly on guesswork? How can scientific thinking improve such predictions?Show solution

A recent prediction such as the outcome of a cricket match may be based on either evidence and reasoning or on guesswork. If we look at facts like the teams' recent form, players' fitness, pitch condition, and weather, then the prediction is based on evidence. If we simply say one team will win because we like it, then it is mainly guesswork.

Scientific thinking improves predictions by making us:

  • use observations instead of opinions,
  • look for patterns in past results,
  • consider measurable factors,
  • and check whether the prediction is testable.

So, scientific thinking makes predictions more reliable and less random.

2Describe one situation where an approximate answer is good enough, and one where you would need a very exact value.

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Frequently Asked Questions

What are the important topics in Exploration : Entering the World of Secondary Science for CBSE Class 9 Science?
Key topics in Exploration : Entering the World of Secondary Science include Scientific Thinking and Models, Science Language: Symbols, Units, and Mathematics, Speed of Light and Scientific Symbols, Laws, Theories, and Principles. Study these first, then practise questions on each for Class 9 exams.
Are these NCERT Solutions for Exploration : Entering the World of Secondary Science free?
The first 1 of the 2 solutions on this page are open to read. The other 1 are free with a Super Tutor account — signing up is free and needs no card.
How should I revise Exploration : Entering the World of Secondary Science for Class 9 exams?
Learn the core ideas first, then work through the 55 practice questions on Exploration : Entering the World of Secondary Science. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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