Module 1: Practical skills Flashcards
What is a negative control?
A sample that does not receive any type of treatment and so shouldn’t show any change in an experiment.
What does a repeatable experiment mean?
If you repeat the experiment with the same method and equipment, you should get the same results.
What are valid results?
Results that correspond to the real properties.
3 things to consider when carrying out a risk assessment?
Dangers of the experiment.
Who is at risk.
How the risk can be reduced.
What is a graduated pipette?
Pipette with a scale to measure specific volumes. Make sure to read from the bottom of the meniscus at eye level.
How to accurately use a water bath.
Allow time for the water baths to heat up before starting the experiment. Solutions will also need to acclimatise to the temperature before starting.
What are precise results?
Don’t vary much from the mean.
