Equipment & Scientific Terms
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Accuracy
How close a measured value is to the true value
Anomaly
A result that does not fit he pattern of results
Controlled variable
Variables that are kept the same during an experiment to make the investigation valid
Dependent variable
The variable that is measured to get results in an investigation.
Describe
Tell me in detail what you see but no need to explain why.
Explain
Tell me WHY something happened.
Independent variable
The variable that is changed by the scientist during an investigation.
Method
Step-by-step description of how the experiment was carried out.
Prediction
What you think will happen in the investigation before you carry out the experiment.
Reliability
Repeating the experiment will improve the reliability of the results.
Validity
Only one variable should be changed at a time by the scientist for the experiment to be valid.
Safety flame
Yellow flame when air hold is fully closed. Easier to see.
Roaring flame
Blue noisy flame, when the air hole is fully open. Very hot.
Beaker
Glass cup
Boiling tube
Wider, thicker test tube
Bunsen burner
Produces a flame to heat things in a lab.
Clamp stand
Used to hold equipment above the desk during experiments.
Dimple/spotting tile
Used so scientists ca test multiple samples at the same time.
Filter funnel
Used along with filter paper to carry out filtration.
Gauze
Wire that sits on top of the tripod and protects glassware as it is heated.
Goggles
Worn over eyes during experiments for protection.
Heatproof mat
Placed under a Bunsen burner to protect the desk.
Measuring cylinder
Used to measure the volume of liquids.
Droppers
Used to transfer small volumes of liquid.