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Science

Variables in an experiment

In Class 9 Science, within “Exploration: Entering the World of Secondary Science,” students learn how variables shape a scientific experiment. They distinguish the independent variable that is deliberately changed, the dependent variable that is measured, and controlled variables kept constant for a fair test. The topic develops skills in planning investigations, recording observations, comparing results, identifying patterns, and drawing evidence-based conclusions while recognising sources of error.

Easy · Level 7 · 5 questions

TOPIC PRACTICE

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5 questions

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  1. Independent variable
  2. Controlled variable
  3. Dependent variable
  4. Constant
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  1. Independent variable
  2. Dependent variable
  3. Result
  4. Controlled variable
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  1. Changing water amount and measuring plant height with water amount as the independent variable
  2. Changing temperature and measuring dissolving time with time as the independent variable
  3. Changing light and counting leaves with leaves as the independent variable
  4. Changing surface and measuring distance with distance as the independent variable
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  1. Keeping soil type the same
  2. Measuring ice melting time at different temperatures
  3. Changing lamp distance
  4. Changing fertilizer amount
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  1. नई खाद के पौधों की वृद्धि पर प्रभाव जाँचते समय बिना खाद वाला समूह रखना
  2. तार की लंबाई मापते समय पैमाना बदलना
  3. हर नमूने का रंग दर्ज करना
  4. सभी परिणामों को समान करना

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