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scientific method
Question | Answer |
---|---|
What is biology | The study of living things |
An organism | A living thing |
What is the scientific method | A process of investigation in which problems are identified and their explanations are tested by carrying out experiments |
Observation | Provide the basis for all facts |
Hypothesis | An educated guess based on observations |
Experimentation | Designed to test a hypothesis |
Data | Information gathered from experiments |
Conclusion | Data interpreted to reach a conclusion or result |
Theory | A hypothesis that has been supported by many different experiments |
Principle | A theory that has been shown to be valid when tested over a long period of time |
What are the principles of experimentation | Careful planning and design Ensure the experiment is safe Design a control experiment Experiments must be fair |
Variable | A factor that may change in an experiment |
Control | Used to provide a standard against which the actual experiment can be judged |
What does ethical issues relate to | Whether conduct is right or wrong |
Name four ethical issues | Medical issues Cloning of animals Origin of life Organ transplants |
Name four limitations of the scientific method | The extent of our basic knowledge Changes in nature Design of the experiment Accidental discoveries |
Replicate | A repeat of an experiment |
Double blind testing | When both parties don’t know the arrangements of the test |
How can experiments be fair | Large sample size Random selection Double blind testing Reporting the experiment so others can test it Others must be a able to replicate it |