Class 8 Science: Exploring the Investigative World of Science Worksheet (with Answers)
A free, print-ready worksheet on Exploring the Investigative World of Science for CBSE Class 8 Science, with a matching answer key. Use the sample below, or build your own with the exact mix of questions you need — no login, no ads.
Sample worksheet
7 of 17 questions from this chapter. Generate your own for the full set, more variations, and a clean print layout.
- 1. Scientific investigation usually begins with:
- (a) a final answer
- (b) a fixed opinion
- (c) careful observation and questions
- (d) ignoring evidence
- 2. A testable possible explanation is called a:
- (a) law
- (b) theory
- (c) result
- (d) hypothesis
- 3. In a fair test we change:
- (a) only one factor at a time
- (b) all factors together
- (c) no factors
- (d) the conclusion
- 4. Something noticed directly during an experiment is an:
- (a) opinion
- (b) observation
- (c) guess
- (d) argument
- 5. What is a hypothesis?
- 6. How is an observation different from an inference?
- 7. Describe the steps a scientist follows in an investigation, with an example.
View answers
- 1. (c) careful observation and questions — Investigations start from observation and curiosity.
- 2. (d) hypothesis — A hypothesis is a testable proposed answer.
- 3. (a) only one factor at a time — Changing one variable at a time keeps the test fair.
- 4. (b) observation — Directly noticing or measuring is observation.
- 5. A testable possible explanation for something we observe.
- 6. An observation is noticed directly; an inference is reasoned out from observations.
- 7. A scientist first observes something, for example that plants near a window grow taller. Next comes a question: does more light make plants grow taller? Then a hypothesis: 'plants given more light grow taller'. The scientist designs a fair experiment, growing identical plants with different amounts of light while keeping water, soil and temperature the same, records the heights as data, and finally draws a conclusion from the evidence. If the data do not support the hypothesis, it is revised and tested again.
How it works
Every question is drawn from StudyMatic’s own Science bank for Exploring the Investigative World of Science — nothing is auto-generated or invented. Pick how many of each type you want, add your own questions if you like, choose 1–4 paper sets for anti-cheating, and print the worksheet and answer key separately or save them as PDF.
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FAQ
- Is this Class 8 Science worksheet on Exploring the Investigative World of Science free?
- Yes — it is completely free, with no login and no ads. You can print it or save it as a PDF, and generate unlimited variations.
- Does the Exploring the Investigative World of Science worksheet come with answers?
- Yes. Every worksheet has a separate answer key with the correct answers, short explanations and marks, so it is ready for marking.
- Can I choose how many questions and which types?
- Yes. Open the generator for this chapter and set how many MCQs, short, long and HOTS questions you want; totals and marks update live, and you can swap any single question.
- Which board and class is this for?
- This worksheet is aligned to CBSE Class 8 Science, chapter “Exploring the Investigative World of Science”.