Front

What is a manipulated variable in an experiment?

Back

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

Tags

NGSS.MS-PS2-2

Front

In a graph, which axis represents the independent variable?

Back

The x-axis represents the independent variable.

Tags

NGSS.MS-PS3-1

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in response to changes in the independent variable.

Tags

NGSS.MS-PS3-4

Front

What should you do first if you are injured in a laboratory?

Back

You should tell the teacher immediately.

Front

What is a quantitative observation?

Back

A quantitative observation is a measurement that includes a number and a unit, such as speed (e.g., 55 mph).

Tags

NGSS.MS-PS2-2

Front

What is the difference between independent and dependent variables?

Back

The independent variable is the one that is changed or controlled, while the dependent variable is the one that is measured or observed.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Front

What is an example of a qualitative observation?

Back

A qualitative observation describes characteristics or qualities without using numbers, such as 'the car is red'.

Front

Why is it important to control variables in an experiment?

Back

Controlling variables is important to ensure that the results are due to the manipulation of the independent variable and not other factors.

Front

What is the purpose of a hypothesis in scientific experiments?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

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

Back

The y-axis typically represents the dependent variable, showing how it changes in response to the independent variable.