2921831
Beschreibung
Mindmap von Justine Moy, aktualisiert more than 1 year ago
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Erstellt von Justine Moy
vor mehr als 9 Jahre
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Practical and Investigative Skills
- Pieces of Apparatus
- Burette
- Glass Pipette
- Condenser
- Syringe
- Funnel
- Beaker
- Conical Flask
- Dropping Funnel
- Round Bottom Flask
- Burette
- Seperation Techniques
- 3. Fractional Distillation
- 4. Seperating Funnel
- 5. Centrifuge
- 1. Filtration
- 2. Distillation
- 6. Magnetism
- 7. Crystallisation
- 8. Paper Chromatography
- 3. Fractional Distillation
- Planning an Investigation
- Step 1: PLANNING
- Figure out the AIM and PURPOSE of the experiment
- Use SCIENTIFIC KNOWLEDGE
- Make sure the experiment is SAFE
- PREDICTION: Make a simple
statement about what you think is
going to happen
- PREDICTION: Make a prediction based
on numbers or possible graphs.
- Ensure that you have a clear and well thought out METHOD
- Figure out the AIM and PURPOSE of the experiment
- Step 2: EVIDENCE
- The results you obtain should be reliable and
accurate. You should also know how to deal with
anomalous results
- Reliability: repeated results
that are very similar. REPEATED
at least 3 times to calculate an
average
- Accuracy:quality of
apparatus and skill of the
person measuring.
- Reliability: repeated results
that are very similar. REPEATED
at least 3 times to calculate an
average
- Recording RESULTS
- Results should be recorded in a
table including repeated results
- Results must be recorded and
displayed in atable where the
iNDEPENDENT variable is in the left
column
- A seperate column to
calculate the average
should also be drawn
and calculated at the
end of the experiment
and when all the
anomalous results have
been identified and
disregarded
- Results should be recorded in a
table including repeated results
- The results you obtain should be reliable and
accurate. You should also know how to deal with
anomalous results
- Step 3: ANALYSIS
- After results are collected, a GRAPH should
be drawn to clearly represent the results
- Use a sensible SCALE
- Independent variable on x-axis
while dependent goes on the y-axis
- Included labels with UNITS for both axes
- Include a title
- Circle any
ANOMALOUS
results
- Draw a line of best fit
following the general trend
of the points plotted without
anomalous results
- Come to a conclusion and state what the
graph shows you and what you have found
out. Relate back to your prediction
- Use a sensible SCALE
- After results are collected, a GRAPH should
be drawn to clearly represent the results
- Step 4: EVALUATION
- This should involved commenting on
how well the investigation went
- Evaluate how reliable and how
accurate the results were
- Think about what
improvements you could
make eg. precision and
validity.
- See how you could avoid the
limitations you faced this time
- Evaluate how reliable and how
accurate the results were
- Take your work further
- Changing one or more reactants
using the same method
- Using a different method eg. datalogger
- Obtaining a wider range of
results to support your
investigation
- Changing one or more reactants
using the same method
- This should involved commenting on
how well the investigation went
- Step 1: PLANNING
- Hazard Symbols
- Highly Flammable
- Toxic
- Corrosive
- Harmful
- Oxidising Agent
- Irritant
Medienanhänge
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