Design and carry out a scientific experiment that investigates a topic from either the life, earth or physical sciences and uses appropriate methods, tools, technologies, and quantitative measurement units.

Design and carry out a scientific experiment that investigates a topic from either the life, earth or physical sciences and uses appropriate methods, tools, technologies, and quantitative measurement units.
A. Complete a project design plan (completed before the investigation is conducted) in which you include and address the following sections:
• Problem statement
• Relevance of your testable question
• Literature review
• Experimental design
• Dependent, independent, and controlled variables
• Threat reduction to internal validity
• Hypothesis
1. In a literature review, summarize information from at least two outside science experiment projects (published works or works by other students) that relate to your topic of inquiry.
2. In an experimental design, do the following:
a. Describe the steps in the experimental procedure.
Note: The level of detail should be such that someone else would be able to reasonably replicate your experiment from your description.
b. Discuss your reasoning for choosing this particular experimental design plan.
c. Explain the sequence of events you will use to collect quantitative data.
d. Describe the tools, technologies, and measurement units that will be used to collect quantitative data.
3. Explain and identify the dependent, independent, and controlled variables for your study.
4. Explain what you will do to reduce the threats to internal validity.
5. In the hypothesis section, state your hypothesis, and explain how you come up with your hypothesis.
B. Explain the process of data collection (completed after the investigation is conducted), including appropriate photographs, tables, or diagrams to clearly show the data collection process.
1. Discuss your use of appropriate methods, tools, and technologies to collect quantitative data.
• Use appropriate measurement units to collect quantitative data.
C. Explain the results of your experiment (completed after the investigation is conducted), including graphical representations (e.g., bar graph, line graph, pie chart, etc.) of the data collected.
• Include appropriate measurement units in the graphical representations.
D. Provide a conclusion derived from your interpretation of the data (completed after the investigation is conducted). Include the following in your conclusion:
1. Discussion of whether your results confirm or refute your hypothesis.
2. Explanation of why experimental design is a key factor in the success of the scientific inquiry.
3. Explanation of how your investigation can be replicated by someone else.
a. Discuss how the replication of an experiment is an evaluation of validity.
E. If you use sources, include all in-text citations and references in APA format.
Note: Please save word-processing documents as *.rtf (Rich Text Format) or *.pdf (Portable Document Format) files.
Note: When bulleted points are present in the task prompt, the level of detail or support called for in the rubric refers to those bulleted points.
Note: For definitions of terms commonly used in the rubric, see the Rubric Terms web link included in the Evaluation Procedures section.

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