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BTEC Applied Science Unit 2 Learning Aim B
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- PEARSON (PEARSON)
Practical scientific procedures and techniques, learning aim B, Distinction grade level,
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BTEC Level 3 Applied/Forensic Science
Unit 2: Practical Scientific Procedures and Techniques
Learning Aim B: Undertake calorimetry to study cooling curves
Matthew Howard (9360)
March 2022
, Part A: Calibration of thermometers
Introduction:
The calibration of thermometers is very important in the cooling curve of stearic acid
experiment. This is because you want to try and get a valid result in the experiment, a
thermometer that is not calibrated right correctly can affect the results in a negative way. If
the thermometers that are tested are not perfect accurate the results that are found can be
used to work out what the results would be if a perfect thermometer was used. In my
experiment I used 2 types of thermometers, a liquid filled traditional thermometer and an
electronic Infared digital thermometer. This experiment was done using both thermometers
to investigate which thermometer gave me the most accurate readings, this was done so I
could gain valid results in the final experiment.
Equipment:
-2x Beakers
-Ice cubes
-Thermometer
-Digital thermometer
-Kettle
-Stopwatch
-Eye protection
Risk Analysis:
Hazard Risk Prevention
Boiling Water Skin burns/trauma Where lab gear to
prevent the water
from getting into
contact with your
skin
Glass Cuts that can result Cover skin to
in bleeding prevent cuts from
happening
Water Falling Over Wipe spillages up
before they can
cause someone to
trip over
Well presented risk assessment
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