Grade 7 Experimental Design Worksheet
A worksheet for 7th-grade science students focusing on the principles of experimental design, including independent and dependent variables, controls, and hypothesis formation.
Includes
Standards
Experimental Design Basics
Name:
Date:
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of experimental design principles.
1. A scientific experiment usually begins with a , which is a testable explanation or prediction.
2. The variable is the one that is changed or manipulated by the scientist.
3. The variable is the one that is measured or observed as a result of the changes.
4. A group is used for comparison and does not receive the experimental treatment.
5. Which of the following is NOT a characteristic of a good hypothesis?
It is testable.
It is a question.
It can be proven false.
It is based on observation.
6. In an experiment testing the effect of different fertilizers on plant growth, what is the independent variable?
The amount of water.
The type of fertilizer.
The height of the plants.
The type of plant.
7. A student wants to investigate if listening to music while studying affects test scores. Formulate a hypothesis for this experiment.
8. Identify the independent variable and the dependent variable in the experiment described in question 7.
Independent Variable:
Dependent Variable:
9. It is important to keep all variables constant except for the independent variable in an experiment.
True
False
10. A control group is essential in every experiment to ensure valid results.
True
False