1. A scientist runs several experiments under different conditions. How can they best determine which condition significantly affects the outcome? A) Compare results of experiments with different independent variables B) Use statistical methods to analyze the data collected C) Select the best-performing experiment and repeat it D) Combine all data into one summary2. After testing a hypothesis, a researcher finds mixed results. What should they do to improve future experiments? A) Disregard the conflicting results B) Revise the experimental design based on findings C) Conduct the same experiment again without changes D) Publish the findings regardless 3. If a new scientific theory contradicts established theories, what is a crucial step for its acceptance? A) It must be popular among scientists B) It should provide more accurate predictions C) It needs to have historical precedent D) It must be supported by a majority vote 4. How can you assess the effectiveness of different solvents in dissolving a specific solute? A) Measure the temperature of the solvents B) Compare the time taken for solute dissolution C) Assess the color change during dissolution D) Analyze the boiling points of the solvents 5. When preparing a solution with a known concentration, what is the best method to ensure accuracy? A) Estimate the volume of solute added B) Use precise measurements and a volumetric flask C) Mix the solute and solvent by eye D) Use any container for mixing
