Isolating Variable

The independent variable is the ONE thing you _____

• change

• keep the same

• experiment with

• investigate

Tags

NGSS.MS-PS2-2

Bonnie wants to test whether adding Bio-fertilizer 'x' will help plant grow. What is the "controlled group" in this experiment?

• plant sprayed with Bio-fertilizer 'x'

• plant without the Bio-fertilizer 'x'

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In an experiment to test the effect of light on plant growth, what is the variable that is isolated?

• A) Type of plant

• B) Amount of water

• C) Amount of light

• D) Type of soil

Tags

NGSS.MS-LS1-5

When graphing the results of an experiment, which variable is typically placed on the x-axis?

• A) Dependent variable

• B) Independent variable

• C) Controlled variable

• D) Extraneous variable

Tags

NGSS.MS-PS3-1

In a chemical reaction experiment, which variable would you isolate to determine the effect of temperature on reaction rate?

• A) Concentration of reactants

• B) Temperature

• C) Volume of container

• D) Pressure

Tags

NGSS.HS-PS1-5

Which of the following is an example of isolating a variable in a physics experiment?

• A) Changing the mass of an object to see its effect on acceleration

• B) Measuring the speed of a car without changing any conditions

• C) Observing the color change in a chemical reaction

• D) Recording the temperature of a liquid over time

In a biology experiment, if you want to isolate the effect of a nutrient on plant growth, what should you keep constant?

• A) Type of nutrient

• B) Amount of sunlight

• C) Type of plant

• D) Amount of water

What is the purpose of isolating a variable in a scientific experiment?

• A) To increase the complexity of the experiment

• B) To ensure that the results are due to the variable being tested

• C) To make the experiment more interesting

• D) To test multiple variables at once

In a physics experiment, if you are testing the effect of force on acceleration, which variable should be isolated?

• A) Mass of the object

• B) Surface texture

• C) Force applied

• D) Time of observation

Tags

NGSS.MS-PS2-2

Which of the following best describes an isolated variable in a scientific study?

• A) A variable that is kept constant

• B) A variable that is changed to observe its effect

• C) A variable that is not measured

• D) A variable that is irrelevant to the study