Controls and Variables in Science
Explore the concepts of independent, dependent, and controlled variables in scientific experiments for Grade 6 science.
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Controls and Variables Worksheet
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of controls and variables in scientific experiments.
Use the words below to complete the sentences.
1. In a scientific experiment, the factor that is changed or manipulated by the scientist is called the .
2. The factor that is measured or observed in response to the change is the .
3. Factors that are kept the same throughout an experiment to ensure a fair test are known as .
4. A testable prediction about the outcome of an experiment is called a .
1. A student wants to find out if different types of soil affect how tall a plant grows. What is the independent variable in this experiment?
The height of the plant
The amount of water given to the plant
The type of soil
The amount of sunlight
2. In the same experiment, what would be a controlled variable?
The type of plant
The plant's height
The color of the pot
The amount of fertilizer used
1. Imagine you are conducting an experiment to see if playing classical music makes plants grow taller. Identify the independent variable, dependent variable, and at least two controlled variables in this experiment.
1. The independent variable is the factor that is measured in an experiment.
True
False
2. Controlled variables are important because they help ensure that only the independent variable is affecting the dependent variable.
True
False