Science 8 Final lExam Review

What is a hypothesis in a scientific investigation?

• A hypothesis is a testable statement or prediction that can be investigated through experimentation.

• A hypothesis is a summary of the results of an experiment.

• A hypothesis is a list of materials needed for an experiment.

• A hypothesis is a detailed procedure for conducting an experiment.

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What is an independent variable in a scientific investigation?

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

• An independent variable is the result that is measured in an experiment.

• An independent variable is the variable that remains constant throughout the experiment.

• An independent variable is the equipment used to conduct the experiment.

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What is a dependent variable in a scientific investigation?

• A dependent variable is the variable being tested and measured in a scientific experiment.

• A dependent variable is the variable that is always kept constant in an experiment.

• A dependent variable is the variable that is changed by the scientist to observe its effect.

• A dependent variable is the variable that is not measured or observed in an experiment.

What is a control group in a scientific investigation?

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

• A control group is the group that always receives the experimental treatment.

• A control group is the group that is not observed during the experiment.

• A control group is the group that collects data from other experiments.

What are constants in a scientific investigation?

• Constants are the factors in an experiment that are kept the same throughout the experiment to ensure a fair test.

• Constants are the results obtained at the end of an experiment.

• Constants are the variables that are changed to test a hypothesis.

• Constants are the errors that occur during an experiment.

What is an experimental group in a scientific investigation?

• An experimental group is the group in an experiment that receives the variable being tested.

• An experimental group is the group that is not exposed to any variables.

• An experimental group is the group that collects data only.

• An experimental group is the group that observes the experiment from a distance.

What are biomolecules?

• Biomolecules are molecules that are present in living organisms, including carbohydrates, proteins, lipids, and nucleic acids.

• Biomolecules are inorganic compounds found only in rocks and minerals.

• Biomolecules are synthetic chemicals used in industrial processes.

• Biomolecules are gases present in the atmosphere.

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Define the term 'Hypothesis' in the context of scientific investigations.

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

• A hypothesis is a proven fact established after an experiment.

• A hypothesis is a summary of the results of an experiment.

• A hypothesis is a list of materials needed for an experiment.

Define the term 'Independent Variable' in the context of scientific investigations.

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

• The independent variable is the result measured in an experiment.

• The independent variable is the constant factor that does not change during the experiment.

• The independent variable is the variable that is affected by changes in other variables.

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Define the term 'Dependent Variable' in the context of scientific investigations.

• The dependent variable is the variable being tested and measured in a scientific experiment.

• The dependent variable is the variable that is kept constant throughout the experiment.

• The dependent variable is the variable that is manipulated by the experimenter.

• The dependent variable is the background information used for comparison.

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