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24 Cards in this Set
- Front
- Back
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Science
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Process of asking and anwsering questions about the natural world using logic, critical thinking
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Scientific Method
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Process of doing science
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Observation
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Something you detect in your environment using any of your senses
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Purpose
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a question you ask about the observations you make
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Hypothesis
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Possible scientific anwser, must be testable, based on logic, observations, prior knowledge, and evidence
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Experiment
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Testing hypothesis by collecting and recording data, a data table is often used
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Analysis & Conclusion
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Evaluating and interpreting data to determine hypothesis, graphs are often used
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Repeat
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If data does not support hypothesis create new one if it does support repeat to make sure
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Theory
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Used to explain wide set of observations and facts, tested multiple times on multiple people
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Quantitative Observations
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Observations that involve taking measurements
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Qualitatitive Observations
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Observations that use descriptive words to describe an item
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Direct Observations
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Things you can see
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Indirect Observations
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Things you detect with other senses like smelling, hearing, etc.
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Inferences
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Something you assume to be true based on observation or past knowledge
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Variables
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Conditions that can change during an experiment, there is always at least 2 variables in a experiment
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Independent Variable
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a variable that you can change, you have direct control over (amount of water)
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Dependent Variable
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variable changes as result of independent variable, you do not have control over (weather)
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Controlled Experiment
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An experiment that test the effects of one independent variable at a time. Researcher attempts to keep all other independent variables constant. Test subjects are divided into a control group and experimental change
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Control Group
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independent variable is not changed to provide a comparison
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Experimental Group
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independent variable is changed and results are compared to the control group
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Metric System
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universal system of measurement used by scientists, used all over the world, based on # 10
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Meter
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a base unit of metric system, a measurement
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Liter
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a base unit of metric system, a measurement
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Gram
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a base unit of metric system, a measurement
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