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Scientific Skills - Ethics in Science and Global Impacts

Grade 10IB

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

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Scientific Integrity: The requirement for honesty and objectivity in scientific research, avoiding data fabrication, falsification, and plagiarism (self−plagiarismself-plagiarism or copying others).

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Informed Consent: Ethical requirement in human trials where participants must understand the risks and benefits before agreeing to participate, often involving a p<0.05p < 0.05 significance threshold in reported results.

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The 3Rs of Animal Research: Replacement (using in vitroin\ vitro or computer models), Reduction (minimizing the number of animals used via statistical power analysis), and Refinement (minimizing pain and distress).

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Conflict of Interest: Situations where financial or personal considerations may compromise or appear to compromise a researcher's professional judgment.

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Global Impact of Greenhouse Gases: Understanding the Global Warming Potential (GWPGWP) of gases like CO2CO_2, CH4CH_4, and N2ON_2O and their long-term effects on the biosphere.

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Environmental Ethics: The evaluation of scientific advancements, such as LiLi-ion battery production or GMOGMO (Genetically Modified Organisms), regarding their impact on biodiversity and sustainability.

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Peer Review: A process where independent experts evaluate research to ensure the methodology and conclusions are valid, acting as a safeguard against biased reporting.

📐Formulae

Percentage Error=∣Experimental Value−Theoretical ValueTheoretical Value∣×100%\text{Percentage Error} = \left| \frac{\text{Experimental Value} - \text{Theoretical Value}}{\text{Theoretical Value}} \right| \times 100\%

χ2=∑(O−E)2E\chi^2 = \sum \frac{(O - E)^2}{E}

6CO2+6H2O+light→C6H12O6+6O26CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2

Efficiency=(Useful Energy OutputTotal Energy Input)×100%\text{Efficiency} = \left( \frac{\text{Useful Energy Output}}{\text{Total Energy Input}} \right) \times 100\%

💡Examples

Problem 1:

A researcher is studying the impact of a new fertilizer on crop yield. The theoretical yield is expected to be 500 kg500\ kg, but the experimental yield is 485 kg485\ kg. However, to secure more funding, the researcher considers reporting 510 kg510\ kg. Calculate the percentage error of the actual result and the percentage falsification if they report the higher number.

Solution:

Actual Percentage Error: ∣485−500500∣×100=3%\left| \frac{485 - 500}{500} \right| \times 100 = 3\%. Falsification Percentage: 510−485485×100≈5.15%\frac{510 - 485}{485} \times 100 \approx 5.15\%.

Explanation:

While 3%3\% error is scientifically acceptable, adding 5.15%5.15\% to the data is an ethical violation of 'Data Falsification', which misleads the scientific community and stakeholders.

Problem 2:

In a study on global warming, it is noted that Methane (CH4CH_4) has a Global Warming Potential (GWPGWP) 25 times that of Carbon Dioxide (CO2CO_2) over a 100-year period. If a farm produces 200 kg200\ kg of CH4CH_4, calculate the equivalent mass of CO2CO_2 (CO2eCO_2e) that would cause the same impact.

Solution:

CO2e=Mass of gas×GWPCO_2e = \text{Mass of gas} \times GWP. CO2e=200 kg×25=5000 kgCO_2e = 200\ kg \times 25 = 5000\ kg.

Explanation:

This calculation highlights the global impact of agricultural choices. Scientists must report these equivalents ethically to ensure policy makers understand the true environmental footprint of different sectors.

Ethics in Science and Global Impacts - Revision Notes & Key Formulas | IB Grade 10 Science