Quarter 1 Review Part 1

Front

What is the largest known entity in the universe?

Back

The universe.

Front

How does a light wave typically travel from its source?

Back

Straight away from the source.

Front

In an experiment on plant growth, what is the independent variable when different liquids are used?

Back

The type of liquid.

Front

What are the two primary gases that most stars are composed of?

Back

Hydrogen and Helium.

Front

What is the term for the variable that is kept constant in an experiment?

Back

Control variable.

Front

Define 'independent variable' in the context of an experiment.

Back

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

Front

What is a 'dependent variable' in an experiment?

Back

The variable that is measured and affected in the experiment.

Front

Explain the significance of control variables in an experiment.

Back

Control variables are important to ensure that the results are due to the independent variable and not other factors.

Front

What is the scientific method?

Back

A systematic process for experimentation that is used to explore observations and answer questions.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.