Understanding the Dependent Variable
Explore the concept of dependent variables in scientific experiments with this Grade 7 science worksheet, featuring real-world examples and analysis.
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Understanding the Dependent Variable
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Read each question carefully and answer to the best of your ability. Remember to identify the dependent variable in each scenario.
1. In an experiment, the dependent variable is the factor that is or measured to see how it responds to changes in the independent variable.
2. The dependent variable is the of the experiment.
3. Scientists the dependent variable to gather data.
1. A scientist is testing how different amounts of fertilizer affect plant growth. What is the dependent variable?
Amount of fertilizer
Type of plant
Plant growth
Amount of water
2. A student is investigating how the temperature of water affects the dissolving rate of sugar. What is the dependent variable?
Temperature of water
Amount of sugar
Dissolving rate of sugar
Type of container
1. Imagine you are conducting an experiment to see if the amount of light affects how quickly bread molds. What would be your dependent variable?
2. A company wants to know if a new vitamin supplement increases energy levels in people. What would be the dependent variable in their study?
1. The dependent variable is the factor that the scientist intentionally changes in an experiment.
True
False
2. The dependent variable is what you measure or observe to see if it changes.
True
False
Consider the following experiment:
A student wants to find out if playing music during study time affects test scores. They have two groups of students. Group A studies in silence, and Group B studies with classical music playing. After one hour of studying, both groups take the same test.
1. What is the independent variable in this experiment?
2. What is the dependent variable in this experiment?