1 If the results of an experiment do not support the hypothesis, the scientist should: A Re-evaluate the hypothesis or the experiment B Ignore the results C Change the data D Give up
2 What is the first step of the scientific method? A Observation B Hypothesis C Experiment D Conclusion
3 A testable explanation for a scientific question is called a: A Hypothesis B Theory C Law D Prediction
4 What is the main purpose of repeating an experiment? A To verify results B To change the hypothesis C To have more fun D To waste time
5 A graph is used in the scientific method to: A Display data visually B Create a hypothesis C Make observations D Form a conclusion
6 What is the role of careful measurement in science? A To collect accurate data B To make work harder C To avoid analysis D To make random guesses
7 The process of using your senses to gather information is: A Observation B Inference C Conclusion D Prediction
8 The difference between a hypothesis and a theory is that: A A theory is well-supported by evidence B A hypothesis is always true C A theory is a guess D There is no difference
9 Which of the following is the correct order of the scientific method? A Observation, Hypothesis, Experiment, Analysis, Conclusion B Hypothesis, Observation, Experiment, Conclusion, Analysis C Experiment, Observation, Hypothesis, Conclusion, Analysis D Conclusion, Hypothesis, Experiment, Observation, Analysis
10 What is the role of the independent variable in an experiment? A It is changed to see its effect B It is measured C It is kept constant D It is the result
11 Which of the following is an example of a scientific question? A Is this flower pretty? B - C What is the best color? D Is ice cream tasty?
12 Why is it important to have a large sample size in an experiment? A To increase reliability B To make it harder C To make it faster D To reduce costs
13 In the same experiment, the height of the plants is the: A Dependent variable B Independent variable C Controlled variable D Control group
14 A scientific law describes: A What happens in nature B Why something happens C A hypothesis that has been proven D A future prediction
15 The process of logical reasoning from observations is called: A Inductive reasoning B Deductive reasoning C Creative thinking D Intuition
16 The scientific method is important because it: A Provides a systematic way to investigate B Guarantees correct answers C Is quick and easy D Avoids errors completely
17 A conclusion is valid if: A It is supported by the data B It is a personal opinion C It is popular D It matches the hypothesis
18 Which of the following is an example of a scientific observation? A The plant grew 5 cm in one week B The plant is beautiful C The water is warm D The solution is good
19 The information collected during an experiment is called: A Data B Hypothesis C Conclusion D Theory
20 The study of how scientists work is called: A Scientific methodology B Scientific theory C Scientific law D Scientific principle
21 The factor that is measured or observed in an experiment is the: A Dependent variable B Independent variable C Control variable D Experimental variable
22 In an experiment, the variable that stays the same is called: A Controlled variable B Independent variable C Dependent variable D Responding variable
23 Peer review in science means: A Other scientists check the work B Only the scientist reviews it C The public reviews it D It is never reviewed
24 A scientist predicts that plants will grow taller with more sunlight. This prediction is a: A Hypothesis B Theory C Law D Conclusion
25 The purpose of a conclusion is to: A State whether the hypothesis was supported B Create a new hypothesis C Collect data D Design the experiment