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Class 9 · Science
→A research conclusion is based on people from a small region. What should be examined before applying it to the entire country?
Class 9 · Science
→What should be done before removing an unusual value from an experiment?
Class 9 · Science
→A student changes the hypothesis after the experiment and claims it was the original hypothesis. What is the main problem?
Class 9 · Science
→In an experiment all relevant variables except the independent variable were kept constant. Which conclusion becomes stronger?
Class 9 · Science
→What is the difference between repeatability and validity of a result?
Class 9 · Science
→How can a scientific model be useful even if it does not include every real detail?
Class 9 · Science
→If a sample is large but selected with bias which statement is correct?
Class 9 · Science
→A sample was selected randomly in a study. What is its main benefit?
Class 9 · Science
→The dependent variable was measured in an experiment but the measurement method was unclear. What is the main problem?
Class 9 · Science
→Other scientists obtain the same experimental result using the same method. Which quality does this demonstrate?
Class 9 · Science
→Which statement about a scientific law is most appropriate?
Class 9 · Science
→Why is it incorrect to call a scientific theory merely a guess?
Class 9 · Science
→Two events decrease together in a study. Which conclusion requires additional evidence?
Class 9 · Science
→A scientist published only those results that supported the original belief. Which problem arises?
Class 9 · Science
→If all measurements are close to one another but far from the true value how should the measurement be described?
Class 9 · Science
→Which condition is necessary for a hypothesis to be scientific?
Class 9 · Science
→In an experiment light was varied for plants but temperature also kept changing. What is the correct improvement?
Class 9 · Science
→A scientific claim has been verified many times but a new study gives an opposite result. What is the most appropriate scientific response?
Class 9 · Science
→A scientific study provides data supporting its results but does not describe the measurement method. Why does this weaken verification of the claim?
Class 9 · Science
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