Experimental Design Worksheet
A Grade 10 science worksheet focusing on the principles and components of experimental design, including variables, controls, and hypothesis formation.
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Experimental Design Worksheet
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Date:
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Read each question carefully and provide clear, concise answers. This worksheet assesses your understanding of experimental design principles.
1. A scientific experiment typically begins with the formation of a testable statement called a .
2. The variable that is intentionally changed or manipulated by the experimenter is known as the variable.
3. The variable that is measured or observed in response to changes in the independent variable is the variable.
4. Factors that are kept constant throughout an experiment to ensure a fair test are called .
5. A group in an experiment that does not receive the treatment and serves as a baseline for comparison is the group.
1. Which of the following is the primary purpose of a control group in an experiment?
To introduce bias into the experiment
To show the effect of the independent variable
To provide a basis for comparison
To manipulate the dependent variable
2. A student wants to test if different brands of fertilizer affect plant growth. What would be the independent variable in this experiment?
Plant growth
Amount of water
Brand of fertilizer
Type of plant
1. A hypothesis is always proven correct at the end of an experiment.
True
False
2. Repeating an experiment multiple times helps to increase the reliability of the results.
True
False
1. A scientist is investigating whether the amount of light affects the rate of photosynthesis in a specific plant species. Formulate a testable hypothesis for this experiment.
2. Identify two controlled variables that would be important to maintain in the experiment described above.
Match each term on the left with its correct definition on the right.
1. Independent Variable
a. The factor that is measured or observed.
2. Dependent Variable
b. Factors kept constant to ensure a fair test.
3. Controlled Variables
c. The factor that is changed or manipulated.
4. Control Group
d. Group not receiving treatment, used for comparison.
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