UIL Science I (2)

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What is the scientific method?

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The scientific method is a systematic process used for scientific investigation, which includes making observations, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions.

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NGSS.MS-LS1-1

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Define hypothesis.

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A hypothesis is a testable prediction or educated guess about the relationship between two or more variables.

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What is a variable in an experiment?

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A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

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What is the difference between independent and dependent variables?

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The independent variable is the one that is changed or controlled in a scientific experiment to test its effects on the dependent variable, which is the variable being tested and measured.

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NGSS.MS-PS2-2

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What is a control group?

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A control group is a group in an experiment that does not receive the treatment or intervention, used as a benchmark to measure how the other tested subjects do.

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NGSS.MS-PS1-2

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What is the purpose of a scientific experiment?

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The purpose of a scientific experiment is to test a hypothesis by collecting data and observing the effects of changing one or more variables.

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NGSS.MS-PS2-2

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What is a conclusion in scientific research?

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A conclusion is a summary of the results of an experiment, stating whether the hypothesis was supported or not based on the data collected.

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NGSS.MS-PS3-5

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What is the importance of repeating experiments?

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Repeating experiments is important to verify results, ensure accuracy, and confirm that findings are consistent and reliable.

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Define ecosystem.

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An ecosystem is a community of living organisms interacting with their physical environment, including both biotic (living) and abiotic (non-living) components.

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NGSS.MS-LS2-3

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What is photosynthesis?

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Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

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NGSS.MS-LS1-6

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