8th gd. Review of Unit 1:

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured in an experiment, which changes in response to the independent variable.

Front

In an experiment, what is the independent variable?

Back

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

Front

What does it mean for a question to be testable?

Back

A testable question is one that can be answered through experimentation or observation.

Front

What are quantitative observations?

Back

Quantitative observations are measurements that involve numbers and can be quantified, such as height, weight, or temperature.

Front

What are qualitative observations?

Back

Qualitative observations are descriptive and involve the use of the five senses, such as color, texture, or smell.

Front

What is the purpose of a control group in an experiment?

Back

A control group is used as a standard for comparison in an experiment, helping to isolate the effects of the independent variable.

Front

What is a hypothesis?

Back

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

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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.

Front

What is an experiment?

Back

An experiment is a procedure carried out to support, refute, or validate a hypothesis.

Front

What is the difference between an observation and an inference?

Back

An observation is a statement based on what is seen or measured, while an inference is a conclusion drawn from observations.