Scientific Method Flashcards
(30 cards)
What is observation
Understanding that a problem exists that needs an investigation.
What is hypothesis
An educated guess on the outcome of the experiment based on an observation
What is a control
A control is a second experiment to compare with your result
What does hypothesis doesn’t have to be
It doesn’t have to be right
What result should a control give
A control should give a negative or no result
What is a replicate
A replicate is when you repeat the test many times to get an average
What does a replicate do
Replicate improves reliability
What is a fair test
A fair test is a test that is free from bias
What is a variable
A variable is something that can change
What are the 3 types of variable
Fixed variable , independent variable, dependent variable
What is a fixed variable
Factors that are kept constant between the control and your test
What is independent variable
This is the 1 factor that you change between two tests
What is dependent variable
This is the 2 factor that changes as a result of your experiment
What are the principle of good experiment
Large sample size , random selection, repeating the test many times, double blind test
What is a double blind test
When neither the tester nor the testee know which is the test
What is data
The information collected in your investigation
How many types of data are there
2
Name the 2 types of data
Quantitative ( numbers) , Qualitative ( physical information)
What should results should be usually collected
In a table
Result should be visualised in a …………..
Graph
Results should be a…………
Analysed
Analysis of the data helps you to form …………
Conclusion
What are conclusions
What you have learned from the result
