Unit 1 Review

Front

What is the volume indicated by a graduated cylinder that shows 15 ml?

Back

15 ml is the volume indicated by the graduated cylinder.

Front

What is a quantitative measurement?

Back

A quantitative measurement is a measurement that can be expressed numerically, such as '15.3 cm long'.

Front

In an experiment, what is the independent variable?

Back

The independent variable is the factor that is changed or controlled in an experiment, such as 'amount of fertilizer' in the grass growth experiment.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, such as 'grass growth'.

Front

Which type of graph is best for showing change over time?

Back

A line graph is best for showing change over time.

Front

What does a bar graph represent?

Back

A bar graph represents categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

Front

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

Back

The control group is used as a benchmark to measure how the other tested subjects compare, ensuring that the results are due to the independent variable.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).

Front

What is a hypothesis?

Back

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

Front

What is the significance of the x-axis in a graph?

Back

The x-axis typically represents the independent variable in a graph.