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Science Grade 9-12 Answer Key

Science: Engineering Ethics in Scientific Projects

Evaluating safety, honesty, fairness, and responsibility in engineering decisions

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Science: Engineering Ethics in Scientific Projects

Evaluating safety, honesty, fairness, and responsibility in engineering decisions

Science - Grade 9-12

Instructions: Read each scenario carefully. Answer in complete sentences and support your reasoning with evidence from the situation.
  1. 1

    A student engineering team designs a low-cost water filter for a community science fair. During testing, the filter removes visible dirt but does not reliably remove bacteria. The team wants to present it as safe for drinking water because it looks clean. What ethical issue is present, and what should the team do before presenting the design?

    Focus on the difference between appearance and scientific evidence.

    The ethical issue is misrepresenting safety and performance. The team should clearly report that the filter only removes visible particles, explain that it does not reliably remove bacteria, and either redesign the filter or warn that the water is not safe to drink without additional treatment.
  2. 2

    Explain why public safety is usually considered the top priority in engineering ethics.

    Public safety is usually the top priority because engineering projects can affect many people, including people who did not choose to accept the risk. Engineers have a responsibility to prevent harm, especially when design failures could cause injury, illness, environmental damage, or loss of life.
  3. 3

    A team collecting data for a bridge model test finds that one trial failed badly, but the other four trials were successful. A teammate suggests deleting the failed trial so the results look better. Is this ethical? Explain your answer.

    Think about whether the final report would give an honest picture of the design.

    This is not ethical because deleting an unfavorable trial without a valid scientific reason misrepresents the evidence. The team should include the failed trial, investigate why it happened, and explain how the failure affects confidence in the design.
  4. 4

    List three groups of stakeholders who might be affected by the construction of a new wind farm near a coastal town. For each group, name one possible concern.

    Possible stakeholders include local residents, who may be concerned about noise or views; energy customers, who may want affordable clean power; and wildlife scientists or conservation groups, who may be concerned about bird or bat impacts. Other valid stakeholders include local businesses, fishers, government agencies, and construction workers.
  5. 5

    A company develops a medical device using a small test group that does not include elderly patients, even though elderly patients are likely to use it. What ethical concern does this raise?

    Consider whether the test group matches the people who will use the device.

    This raises a fairness and safety concern because the device may not have been tested on a group that will depend on it. The company should gather evidence from a representative user population or clearly limit claims until the device is tested safely with elderly patients.
  6. 6

    Define informed consent in the context of a scientific or engineering project involving human participants.

    Informed consent means that participants are given clear information about the purpose, procedures, risks, benefits, privacy protections, and their right to leave the study before they agree to take part. Consent must be voluntary and based on understanding, not pressure or confusion.
  7. 7

    A school robotics team uses an open-source design from the internet but removes the original creator's name from the documentation. What ethical problem does this create, and how can the team fix it?

    Using shared designs can be ethical when credit and license rules are respected.

    The ethical problem is failing to give proper credit for someone else's work. The team can fix it by citing the original creator, following the license terms, explaining what parts they used, and clearly identifying any changes they made.
  8. 8

    An engineering team must choose between two materials for a science project prototype. Material A is cheaper but releases toxic fumes when heated. Material B costs more but is safer under testing conditions. Which material should the team choose, and what factors should they explain in their decision?

    The team should choose Material B if heating is part of the project because it better protects health and safety. They should explain the safety risk, cost difference, testing conditions, possible exposure, and why avoiding toxic fumes is more important than saving money.
  9. 9

    A group designs an app that collects location data to support a research project on student transportation patterns. What privacy protections should the group include?

    Think about how to reduce harm if the data were seen by the wrong person.

    The group should collect only the data needed, explain how the data will be used, get informed consent, avoid publishing names or exact identities, store the data securely, limit access, and delete the data when it is no longer needed.
  10. 10

    Describe the difference between a design constraint and an ethical responsibility. Give one example of each from an engineering project.

    A design constraint is a limit the project must work within, such as budget, materials, time, size, or energy use. An ethical responsibility is a duty to act in a way that protects people, respects rights, and reports honestly. For example, a bridge model may have a weight limit as a constraint, while the team has an ethical responsibility to report cracks or failures truthfully.
  11. 11

    A researcher is paid by a battery company to test battery life. The researcher does not mention the funding source in the final report. Why could this be a conflict of interest?

    A conflict of interest does not always mean fraud, but it can affect trust.

    This could be a conflict of interest because the researcher may have a financial reason to report results that favor the company. Even if the data are accurate, hiding the funding source can reduce trust. The report should disclose the funding so readers can evaluate possible bias.
  12. 12

    A team creates a flood warning sensor for a neighborhood. The sensor sometimes fails during heavy rain, which is exactly when it is most needed. What should the team communicate to users while they work on improvements?

    The team should communicate that the sensor is not fully reliable during heavy rain and should not be the only source of warning. They should describe known limits, recommend backup warning methods, and explain that they are working to improve performance under severe conditions.
  13. 13

    Explain how environmental responsibility can be part of engineering ethics, even when a project is technically successful.

    A design can meet its performance goal and still create harmful side effects.

    Environmental responsibility is part of engineering ethics because a project can work as designed but still cause pollution, habitat loss, resource waste, or long-term harm. Ethical engineering considers the full impact of a design, including how materials are sourced, how much energy is used, and what happens at the end of the product's life.
  14. 14

    A team is testing a drone for wildfire monitoring. They can improve image quality by flying lower, but lower flights may disturb wildlife and could create a safety risk near firefighters. Propose an ethical decision-making process for the team.

    The team should identify stakeholders, list possible risks and benefits, review safety rules and environmental guidelines, compare flight options, consult experts or authorities, choose a plan that minimizes harm, and document the reasons for the decision. They should prioritize firefighter safety and avoid unnecessary disturbance to wildlife.
  15. 15

    Write a short ethics statement for a high school engineering project. It should include at least four commitments the team will follow.

    Use action words such as protect, report, respect, cite, test, and improve.

    A strong ethics statement should include commitments such as protecting safety, reporting data honestly, respecting privacy, giving credit to sources, considering environmental impacts, following rules and laws, and listening to stakeholder concerns. The statement should show that the team values responsible design, not just a successful final product.
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