All flashcards
Flashcard 1: What is evidence in science when you are evaluating a solution to a problem?
Answer: Observations or data that support or do not support a claim. Facts that help you judge if something is true or false.
Flashcard 2: What is a claim when you evaluate whether a solution works?
Answer: A statement about what you think will happen or what works. Your prediction or hypothesis about the solution's effectiveness.
Flashcard 3: What does it mean to evaluate a solution using evidence?
Answer: Use data and observations to decide how well the solution works. Compare results to expectations to judge success.
Flashcard 4: Which kind of evidence is stronger: measured data or personal opinion?
Answer: Measured data. Numbers and measurements are objective, not based on feelings.
Flashcard 5: Which option best describes a conclusion based on evidence?
Answer: A decision supported by observations and data. Uses facts to make a logical judgment.
Flashcard 6: What is a variable in an investigation?
Answer: Something that can change and affect results. Factors that can be changed in an experiment.
Flashcard 7: Which option is a fair test: changing one variable or changing many at once?
Answer: Changing one variable. Tests one factor at a time to see its effect clearly.
Flashcard 8: What is the difference between an observation and an inference?
Answer: Observation: what is noticed; inference: what it means. Observations are facts; inferences are interpretations.
Flashcard 9: Which type of evidence is usually stronger: measured data or opinions?
Answer: Measured data. Numbers provide objective proof, unlike personal views.
Flashcard 10: Which option is the independent variable: what you change or what you measure?
Answer: What you change. You control this variable to see its effect on results.
Flashcard 11: What is a control in an investigation that tests a solution?
Answer: A comparison setup with no change to the tested variable. It shows what happens without the solution for comparison.
Flashcard 12: Which kind of evidence is stronger for judging a solution: measured data or an opinion?
Answer: Measured data. Numbers and measurements are facts, not personal feelings.
Flashcard 13: Which term names a fair test where only one factor is changed?
Answer: A controlled experiment. Changing one thing at a time shows what causes the effect.
Flashcard 14: What is the variable you change on purpose in a fair test called?
Answer: Independent variable. The factor you control to test its effect.
Flashcard 15: What is the variable you measure or observe in a fair test called?
Answer: Dependent variable. What changes as a result of your independent variable.
Flashcard 16: What are controlled variables in an experiment?
Answer: Factors kept the same so the test is fair. Keeping other factors constant ensures valid results.
Flashcard 17: Which option best describes a reliable result: happens once or repeats many times?
Answer: Repeats many times with similar results. Consistent results show the outcome is dependable.
Flashcard 18: What is a conclusion in science after testing a solution?
Answer: A decision about the claim based on evidence. Your final judgment supported by the data collected.
Flashcard 19: What is evidence in science?
Answer: Observations or measurements used to support a claim. Facts collected through experiments or observation.
Flashcard 20: What is a claim when evaluating a solution to a problem?
Answer: A statement about which solution works best. Identifies the most effective option based on testing.
Flashcard 21: What does it mean if results are consistent across repeated trials?
Answer: The evidence is more reliable. Same results each time show trustworthy data.
Flashcard 22: What is a control (comparison) in an investigation?
Answer: A baseline condition used to compare results. Shows what happens without the tested change.
Flashcard 23: What should stay the same in a fair test when comparing two solutions?
Answer: All variables except the one being tested. Only one difference ensures you know what caused the results.
Flashcard 24: Identify the best reason to repeat a test when evaluating a solution.
Answer: To check if results are consistent and reliable. Multiple tests show if results happen by chance or are real.
Flashcard 25: What is a variable in an experiment used to test a solution?
Answer: Something that can change and affect the results. Variables are factors you control or observe in tests.
Flashcard 26: Which option is the dependent variable: what you change or what you measure?
Answer: What you measure. The dependent variable responds to what you changed.