Question

thursday - variables in an experiment
question: in an experiment to test how sunlight affects plant growth, what is the independent variable? a. the amount of sunlight b. the height of the plant c. the type of plant d. the type of soil
extension: identify one dependent variable and one controlled variable in this experiment
friday - analyzing data
question: after completing an experiment, what is the purpose of making a graph of your results? a. to make your lab report look fancy b. to help organize and visualize data patterns c. to take up more space in your notebook d. to avoid writing a conclusion
extension: describe one thing you might include in your conclusion after analyzing data

Explanation:

• For the first question about the experiment on how sunlight affects plant growth, the independent variable is what is being changed or manipulated, which is the amount of sunlight. The height of the plant is the dependent variable as it depends on the sunlight, and the type of plant and soil can be controlled variables.
• For the second question about the purpose of making a graph after an experiment, graphs are used to organize and visualize data patterns to make it easier to understand trends and relationships in the data.

Answer:

• Thursday - Question: A. The amount of sunlight
• Thursday - Extension: Dependent variable: The height of the plant; Controlled variable: The type of plant (or The type of soil)
• Friday - Question: B. To help organize and visualize data patterns
• Friday - Extension: You might include whether the results support or refute the hypothesis.