Q1 Review

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What is the independent variable in an experiment?

Back

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

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What is matter?

Back

Matter is anything that has mass and takes up space.

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What happens to molecules in a liquid when it is cooled?

Back

The molecules of the liquid move slower and get a little closer together.

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Why do helium balloons rise in the air?

Back

Helium balloons rise because helium is less dense than air.

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What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment.

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What is density?

Back

Density is the mass of an object divided by its volume.

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What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

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What is a hypothesis?

Back

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

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What is the role of control variables in an experiment?

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Control variables are factors that are kept constant to ensure that the results of the experiment are due to the independent variable.

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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.