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WorksheetsExperimental Skills
Total questions: 41
Worksheet time: 21mins
Your prediction and explanation of what will happen in an experiment is known as the...
Hypothesis
Conclusion
Procedure
Evaluation
What is the definition of a hypothesis?
A prediction using prior scientific knowledge
What you change in an experiment
The title of an investigation
The average
Which of the following should you include in a risk assessment?
List of hazards
Whether there is a high, medium or low risk from each hazard
Precautions you should take to avoid the hazard
All of these
Which of the following must be included in a risk assessment for an experiment? Tick all correct answers.
A list of the hazards e.g. harmful chemicals being used
The main steps of the method
The risks involved with each hazard (what could happen)
A list of the rules to be followed during experiments
Precautions you should take to avoid each risk
You are heating a substance in a test tube. Always point the open end of the tube...
Toward yourself.
Toward your lab partner(s).
Toward another classmate.
Away from all people.
You are heating a piece of glass and now want to pick it up. You should...
Use a rag or paper towels.
Pick up the end that looks cooler.
Use tongs.
Pour cold water on it.
There should not be any loud talking or messing around in the lab because ____.
Your safety and the safety of others depends on your behavior.
Your teacher may have a headache.
The teacher has told you not to.
You may not be able to hear instructions.
The care of the lab equipment is ____.
The responsibility of your lab partner.
The responsibility of your teacher.
Your responsibility.
The responsibility of the custodian.
After completing an experiment, all chemical and biological wastes should be
taken home
dumped in the sink
disposed of according to your teachers directions
left at your lab station for the next class/ teacher to clean up
You can start experiments straight away when entering the lab even if the teacher is not yet present.
True
False
What is this? A list of numbered steps explaining what you did.
Aim
Risk Assessment
Method
Results
The instructions for how to carry out an experiment are called the...
Method
Recipe
Guidelines
Itinerary
The instructions for how to carry out an experiment are called the...
Method
Recipe
Guidelines
Itinerary
Where do we record our observations?
Method
Results
Discussion
Aim
If you increase the number of times you repeat the experiment your results will be more...
Accurate
Reliable
Precise
Fair
How many repeats are needed for a test to be reliable?...
1
5
10
As many as necessary to be confident that patterns shown in the results are not purely due to chance.
You are doing an experiment to see how well bean plants grow inside vs outside. You have 100 plants inside and 100 outside rather than just one inside and one outside. This makes the experiment more...
Accurate
Reliable
Precise
Fair
If you control variables so that only the independent variable affects the dependent variable, then the experiment will be...
Accurate
Reliable
Precise
Fair
If your results vary a lot when you repeat a test then this is often because....
There is a variable that you did not control
You did not calibrate the measuring equipment
There is insufficient precision
You did too many repeat tests
You are doing an experiment to see how the frequency of watering affects the growth of bean plants. You use the same species of bean plant in each test. This makes the experiment...
Accurate
Reliable
Precise
Fair
You have carried out a fair test if...
All your results support your hypothesis
You repeat each observation three times and calculate a mean average
Someone else repeats your experiment and gets the same result
Your only change one variable during your experiment
You have carried out a fair test if...
All your results support your hypothesis
You repeat each observation three times and calculate a mean average
Someone else repeats your experiment and gets the same result
Your only change one variable during your experiment
If you check your measuring equipment and calibrate it to make sure it's properly zeroed, your results will be more...
Accurate
Reliable
Precise
Fair
You are doing an experiment to investigate the height of bean plants of various species. You make sure the ruler you measure with is held perpendicular to the ground to make the results...
Accurate
Reliable
Precise
Fair
When using this type of balance to measure mass for a result, you must check the balance is properly zeroed by pressing 'tare' to make the reading...
Accurate
Reliable
Precise
Fair
Repeating your experiment three times and calculating a mean average makes your result more...
Valid
Accurate
Reproducible
Repeatable
A measurement that is close to it's true value is...
Precise
Accurate
Fair test
Reliable
Results gained from a fair test are...
Fair test
Valid
Reliable
Precise
Repeating your experiment three times and calculating a mean average makes your result more...
Valid
Accurate
Reproducible
Repeatable
If you measure to finer intervals eg: mm instead of cm then the results will be more...
Accurate
Reliable
Precise
Fair
If three groups in the same class all carry out the same experiment and get the same results, then the experiment is...
Valid
A fair test
Biased
Reproducible
How accurate a measurement is
Accurate
Reliable
Fair test
Precise
Describe the accuracy and precision of the image
Accurate and Precise
Accurate and not precise
Not accurate and not precise
Not Accurate and Precise
Describe the accuracy and precision of the image
Accurate and Precise
Accurate and not precise
Not accurate and not precise
Not Accurate and Precise
Describe the accuracy and
precision of the image
Accurate and Precise
Accurate and not precise
Not accurate and not precise
Not Accurate and Precise
It is possible to get the exact measurement of an object.
True
False
The ability to hit the desired target is called
Accuracy
Precision
The ability to replicate
the same results is called
Accuracy
Precision
