Scientific method Flashcards
(14 cards)
What is the scientific method?
A step by step process that leads to knowledge
What is a hypothesis?
An educated guess based on observation
What is an experiment?
A series of steps carried out to test a hypothesis
What is data?
The measurements, observations or information gathered from an experiment
What is a replicate?
A repeat of an experiment or procedure
What are the steps of the scientific method?
- Make observation
- Form a hypothesis
- Test the hypothesis
- Collect and interpret results
- Form a conclusion
What is a theory?
A hypothesis that is supported by experiment
What is a principle?
A proven theory
What are good design features of an experiment?
Planned and designed,
Safety,
Control,
Unbiased
What is a control?
A standard against which an experiment is compared
What is the independent variable in an experiment?
The variable that is manipulated or varied
What is the dependent variable in an experiment?
The variable that is being measured
How can bias be eliminated in an experiment?
The use of a large number of samples
Random selection
Carrying out replicates
Double blind testing
What are some limitations of the scientific method?
The extent of our basic knowledge,
The ability to interpret data or information correctly,
Accidental discoveries,
Ever changing natural world
