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Answer parts (i) and (ii) in relation to the scientific method - Leaving Cert Biology - Question 8 - 2010
Question 8
Answer parts (i) and (ii) in relation to the scientific method. (i) What is a hypothesis? (ii) Why is a control normally used when carrying out an experiment?
Worked Solution & Example Answer:Answer parts (i) and (ii) in relation to the scientific method - Leaving Cert Biology - Question 8 - 2010
Step 1
What is a hypothesis?
Answer
A hypothesis is an educated guess or a possible explanation for a phenomenon. It is a statement that can be tested through experimentation and observation. A good hypothesis is specific and can be supported or refuted through empirical evidence. It often takes the form of a prediction, typically structured as 'If [I do this], then [this will happen].'
Step 2
Why is a control normally used when carrying out an experiment?
Answer
A control is used in experiments to provide a baseline that can be compared to the experimental conditions. It helps to ensure that the results of an experiment are due to the variable being tested and not other factors. By keeping all other variables constant, researchers can isolate the effects of the independent variable, allowing for a more accurate interpretation of the results.