Identifying Variables

Front

What is a variable in an experiment?

Back

A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.

Front

What is an independent variable?

Back

The independent variable is the one factor that is purposely changed or manipulated by the scientist in an experiment.

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

What is a constant in an experiment?

Back

A constant is a factor that remains the same throughout an experiment to ensure that the results are valid.

Front

Why is it important to identify variables in an experiment?

Back

Identifying variables helps to understand the relationship between different factors and ensures that the experiment is controlled and valid.

Front

In the question 'Is Bounty paper towel more absorbent than Sparkle paper towel?', what is the independent variable?

Back

The type of paper towel (Bounty or Sparkle).

Front

In the question 'Do tall people jump further than short people?', what is the dependent variable?

Back

How far the person jumps.

Front

What does it mean to keep a variable constant?

Back

To keep a variable constant means to ensure that it does not change during the experiment, allowing for a fair test.

Front

Give an example of a constant in an experiment testing plant growth with different liquids.

Back

The amount of soil used for each plant.

Front

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

Back

A control group is used as a standard for comparison to see how the independent variable affects the dependent variable.