Biological Skills Flashcards
What must the Aim start with
To determine…
What is the independent variable
Can be controlled, influenced and changed
What must the Hypothesis start with
It is expected that…
What is a Dependent variable
The results/ outcome of investigation
What is a fixed/controlled variable
All the factors that are not allowed to change during the course of the investigation
What must headings of graphs include
The type of graph and both variables with their units
What is a Line graph used for
To see how one specific factor changes as a direct result of the change in another factor
What is a bar graph used for
For data that has qualitative independent variable and not numerical
What is a Pie chart used for
To indicate data as a percentage of the total
How to calculate the % of variable on a Pie charts
Variable divide by total, times 100
How do you calculate the ° of a % on a Pie chart
E. g. 20%= 20 divide by 100, times 360°= 72
What is the formula for calculating actual size
Measure size(mm) divide by magnification
What’s another formula for Actually Size
Measured size(mm) times length of scale line (um) divide by measured length of scale line(mm)
What are some rules for drawing
Labels in pen to the right of the diagram
Label lines in pencil drawn with ruler
Heading at the too with the scale in needed
