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Working Scientifically (Carrying out Experiments (Planning (Identify…
Working Scientifically
Carrying out Experiments
Planning
Equipment/Apparatus
Identify risks
method
Identify variables
#
Control
Independent
Dependent
What/how data will be collected
Hypothesis / Prediction
Graphs
x - axis
horizontal, x is across
independent variables
y - axis
dependent variable
vertical, y to the sky
plotting
individual points with an 'x'
line of best fit
labelling
title and units
Outliers
result very different from the others
Observations
Eye level
Types of chart
Bar chart
Line graph
Pie Chart
Accuracy and precision
Accurate
Close to the true value of what you are measuring
Precision
repeat measurements close together
Variables
Categoric
Words, not values
Continuous
Any numeric value
Discrete
Only whole numbers
After experiments
Analyse date
state what you have found out
Conclusion
Discuss what you have found out
Refer back to hypothesis
Confidence
How confident are you in your data
Evaluate
Discuss quality of experiment and suggest improvements
MATHS
mean
range / spread