Experimental Skills Flashcards
1
Q
What is an independent variable?
A
The independent variable is the one that is changed by the scientist
2
Q
What is a dependant variable?
A
A dependent variable is the variable being tested and measured in a scientific experiment.
3
Q
What is the control variable?
A
The thing that the scientist keeps the same.
4
Q
What is positive correlation?
A
- When the points form an increasing pattern or a positive slope
- It can be a tight formation or a wide formation
5
Q
What is negative correlation?
A
- When the points form a negative slope so when the points are de-creasing.
- It can be a tight or wide formation
6
Q
What is no correlation?
A
When the points are scattered and there is no pattern which is moving up or down.
7
Q
Lines of best fit…
A
- the line that describes the direction of the data
- it needs to be in the centre or as close to as many points as possible
