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WorksheetsIGCSE Core Practical Keywords
Total questions: 12
Worksheet time: 7mins
What is the independent variable?
The variable you measure
The variable you change
The variable you keep the same
How do you ensure an experiment is a fair test?
Repeat the experiment
Control variables
Make sure the experiment is reproducible
Use apparatus with a high resolution
What piece of apparatus is this? (one word answer)
(a)
A result is accurate if...
There are no random errors
There is little spread about the mean value
It is close to the true value
What is the control variable?
The variable you measure
The variable you change
The variable you keep the same
What piece of apparatus is this?
Crucible
Heating basin
Evaporating dish
Bowl
When is an experiment reproducible?
If the same scientist repeats the experiment and gets a different result
If a different scientist repeats the experiment and gets a different result
If the same scientist repeats the experiment and gets the same result
If a different scientist repeats the experiment and gets the same result
What is the dependent variable?
The variable you measure
The variable you change
The variable you keep the same
What resolution does this measuring cylinder have?
1 ml
5 ml
10 ml
100 ml
How can random error be reduced?
Taking more measurements
Controlling variables
Calculating a mean
Reducing resolution
When is an experiment repeatable?
If the same scientist repeats the experiment and gets a different result
If a different scientist repeats the experiment and gets a different result
If the same scientist repeats the experiment and gets the same result
If a different scientist repeats the experiment and gets the same result
What could you use instead of this thermometer to make your temperature readings more accurate?
digital thermometer
measuring cylinder
evaporating dish
