3. Research and explain the contribution of one of the following scientists to society. In your report, include information about what contribution they made and how this contribution benefited society.
• Alexander Fleming • Louis Pasteur • Nikola Tesla • Thomas Edison
• Marie Curie • Charles Darwin • Rosalind Franklin • Tim Berners-Lee
:Fig. 2.4
4. Evaluate the sources you used to answer question 3. Comment on their: a. credibility b. accuracy c. reliability d. relevance
Summary questions 1. Explain the difference between primary and secondary data sources. 2. Give an example of one primary source of information and one secondary source of information.
3. Categorise the following sources of data as either primary or secondary: • magazine article • table of results • investigation write-up
• interview • photograph • review of an article
4. Explain how you would ensure that a source of information you are reading is reliable. 5. What is meant by the term ‘bias’? 6. Why is it important that scientists share their results with the public?
7. Outline how science has contributed to improvements in society. In your answer, explain how the work of one scientist you have researched has improved society.