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37 Cards in this Set
- Front
- Back
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What is the purpose of the scientific method?
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To aquire new knowledge in an organized way.
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Step 1 of the scientific method
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Determine question
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Step 2 of the scientific method
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make hypothesis
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Step 3 of the scientific method
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Form an experiment
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Step 4 of the scientific method
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Analyze results
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Step 5 of scientific method
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conclusions
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Step 6 of scientific method
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collect and publish results
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Explain what it means when we say the scientific method is a cycle?
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The scientific method never stops, it is continuously going. When scientist want to study cancer they have to continuously repeat the cycle
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What is a hypothesis?
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a possible explanation to a scientific question
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What is a theory?
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A scientific idea supported by data but cannot be tested. It tells you why something happens and can change when new information is found.
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What is a law?
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A scientific idea that has been tested many times and has never been proven wrong. It tells you what will happen.
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What is a controlled experiment?
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When all conditions are normal
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Why must you have a controlled experiment?
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To use as comparison
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What is a hypothesis?
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a possible explanation to a scientific question
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What is a theory?
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A scientific idea supported by data but cannot be tested. It tells you why something happens and can change when new information is found.
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What is a law?
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A scientific idea that has been tested many times and has never been proven wrong. It tells you what will happen.
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What is a controlled experiment?
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When all conditions are normal
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Why must you have a controlled experiment?
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To use as comparison
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What is a hypothesis?
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a possible explanation to a scientific question
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What is a theory?
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A scientific idea supported by data but cannot be tested. It tells you why something happens and can change when new information is found.
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What is a law?
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A scientific idea that has been tested many times and has never been proven wrong. It tells you what will happen.
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What is a controlled experiment?
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When all conditions are normal
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Why must you have a controlled experiment?
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To use as comparison
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What is an independent variable?
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What is purposely being changed. The cause
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What is a dependent variable?
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What is changing because of the independent variable. The effect
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What is a quantative observation?
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numbers,measurement of amounts
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What is a qualitative observation?
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descriptions, characteristics
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What is an observation?
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No opinion, when you use your 5 sences to gather acurate and detailed information.
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What is an inference?
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when you draw conclusions based on observations and prior knowledge
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What are two characteristics that make the metric system so easy to work with?
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Based on power of 10, prefixes show size.
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Label for volume?
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mL
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Label for density?
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g/mL or g/cm^3
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Formula for density?
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mass/volume
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Why do you use the smallest graduated cylinder possible?
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Most accurate results
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How do you find the volume of an irregular solid?
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place in graduated cylinder and measure displacement of water
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In order what are the metric system prefixes?
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Kilo, Hecto, Deka, Base, Deci, Centi, Milli
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Importance of sampling?
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to study a large population by recording data from a small part and make predictions about entire population, larger the sample size the more accurate
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