Transcript Carrying out Practical Tasks

Carrying out Practical Tasks
The sequence of tasks
The scientific method
• Scientists have been
developing the scientific
method for hundreds of
years.
• There have been slight
modifications, but
essentially it has
remained a successful
method for
experimental procedures
An overview of the process
The Empirical Method
Carrying out Practical Tasks
Following standard procedures
Handling scientific equipment and materials
Recording and analysing scientific data
standard procedures provide
explicit instructions
choosing and using laboratory equipment
precisely and effectively
recording and presenting data
analysing and evaluating data
On the following slide there are a selection of boxes. Each boxes fills the space of one of the empty
boxes at the bottom of this chart.
In pairs move your copies around and discuss the correct sequence.
You will be asked to justify your choice
Where do they belong?
Read the procedure and
check to see if there is
anything you do not
understand.
Use appropriate
equipment to obtain more
reliable/accurate data
Evaluate your
investigation and suggest
improvements
Calibrate instruments
when necessary
Carry out simple
numerical calculations on
the data
Carry out a health and
safety check of your
working area
Follow the instructions
one step at a time
Recognise and use the
standard lab equipment
and glassware provided
Set out your work area
and collect together the
equipment and materials
you need
Recognise when it is more
appropriate to repeat
readings – it is in most
instances
Carry out a risk
assessment specific to
the activity you are doing
Identify possible sources
of error and repeat
observations to improve
reliability
Present data in tables,
bar-charts, histograms etc
and other visual images,
as appropriate
Prepare equipment for
use, including data
logging equipment where
appropriate
Make accurate
observations and
measurements, using
appropriate equipment
Analyse and interpret your
results using the data
collected – make use of
graphs etc.