Midterm - Grade 8

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What is a control group in an experiment?

Back

A control group is a group in an experiment that does not receive the treatment or intervention being tested, allowing for comparison with the experimental groups.

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What is mechanical potential energy?

Back

Mechanical potential energy is the energy an object possesses due to its position or condition, such as an object held at a height.

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What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, like food and fuel, which can be released during a chemical reaction.

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What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

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What is the first step in the scientific method?

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The first step in the scientific method is to make an observation and ask a question about it.

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What is a hypothesis?

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A hypothesis is a proposed explanation for a phenomenon, which can be tested through experimentation.

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What is the dependent variable?

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The dependent variable is the variable that is measured or observed in an experiment, which is affected by changes in the independent variable.

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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 manipulating variables and observing the outcomes.

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What is the difference between qualitative and quantitative data?

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Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements and can be counted or measured.

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What is the significance of repeating experiments?

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Repeating experiments is important to verify results and ensure that findings are reliable and not due to chance.