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Biology Quiz - Unit 4 - Is Hypothesis Supported by the Data? (Questions)

This GCSE Biology quiz helps you decide whether experimental results support your hypothesis, using patterns in the data to judge if your original idea still fits.

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(quiz starts below)

Fascinating Fact:

If the data do not match the prediction, then the hypothesis is not supported. This is still useful because it suggests that your original idea needs to be revised.

In GCSE Biology, you use data from practical work to test ideas. You compare the pattern in your results with your prediction to decide whether your hypothesis is supported.

Key Terms

Hypothesis: A testable scientific idea that predicts how one variable will affect another.
Prediction: A specific statement of what you expect to happen if the hypothesis is correct.
Trend: The overall pattern in the data, such as one value increasing as another increases.

Frequently Asked Questions (Click to see answers)

How do I know if my data supports a hypothesis in GCSE Biology?

To decide if data supports a hypothesis, compare the pattern in your results with your prediction. If the trend in the data matches your prediction, the hypothesis is supported.

What should I write if my data does not support the hypothesis?

If data does not support the hypothesis, explain that your results did not match the prediction, suggest possible reasons, and state that the original idea may need changing or refining.

Is a hypothesis “wrong” if the data does not match the prediction?

In science we usually say the hypothesis is “not supported” rather than “wrong”. This shows that the evidence does not fit the prediction and that a new or revised hypothesis is needed.

Try These Related Quizzes

1.

What is a hypothesis?

[ ]	A prediction based on previous knowledge
[ ]	A random guess
[ ]	The results obtained
[ ]	A statistical test

2.

Which of the following is an example of a hypothesis?

[ ]	I think that the reaction will be slowed down
[ ]	I think that the reaction will be faster
[ ]	I think that if I increase the concentration of acid, the reaction will be faster
[ ]	If I increase the concentration of acid, there will be more acid particles so I think the reaction will be faster because there will be more collisions

3.

Data we consider for supporting the hypothesis consists of...

[ ]	results obtained in the past
[ ]	results from someone else's experiment
[ ]	results obtained in the current investigation
[ ]	no results

4.

When the hypothesis is supported, the data is in...

[ ]	dispute
[ ]	agreement
[ ]	negative
[ ]	borderline

5.

If the data does not support the hypothesis, you should ...

[ ]	repeat the experiment several times to ensure the accuracy and reliability of the results
[ ]	write a conclusion based on this first experiment
[ ]	give up
[ ]	make up the results

6.

Which of the following could be a practical reason for unexpected data which does not support the hypothesis?

[ ]	Running out of time
[ ]	Incorrect measuring of volumes
[ ]	Being distracted
[ ]	Working on your own

7.

How would you process the data to work out if your hypothesis is supported?

[ ]	Work out the average and compare the groups of data
[ ]	Draw a pie chart
[ ]	Do more tests
[ ]	Put the results into a table

8.

A hypothesis is supported by the results.

[ ]	Always true
[ ]	Always false
[ ]	Sometimes true
[ ]	Never

9.

What is an opinion based on?

[ ]	Fact
[ ]	Beliefs
[ ]	Non factual information
[ ]	Emotions

10.

Why is a control used in scientific experiments?

[ ]	In order for it to be a fair test
[ ]	To compare with the experimental group
[ ]	To increase the sample size
[ ]	To make it more likely that we get a good result

You can find more about this topic by visiting BBC Bitesize - Practical skills

Biology Quiz - Unit 4 - Is Hypothesis Supported by the Data? (Answers)

1.

What is a hypothesis?

[x]	A prediction based on previous knowledge
[ ]	A random guess
[ ]	The results obtained
[ ]	A statistical test

Try to make your hypotheses precise and always include information about the science you have based it on

2.

Which of the following is an example of a hypothesis?

[ ]	I think that the reaction will be slowed down
[ ]	I think that the reaction will be faster
[ ]	I think that if I increase the concentration of acid, the reaction will be faster
[x]	If I increase the concentration of acid, there will be more acid particles so I think the reaction will be faster because there will be more collisions

A hypothesis needs to have a reason for the prediction

3.

Data we consider for supporting the hypothesis consists of...

[ ]	results obtained in the past
[ ]	results from someone else's experiment
[x]	results obtained in the current investigation
[ ]	no results

In the conclusion, always add a statement about how well you think the data supports the original hypothesis

4.

When the hypothesis is supported, the data is in...

[ ]	dispute
[x]	agreement
[ ]	negative
[ ]	borderline

Data supports the hypothesis if it shows agreement. If the data is unexpected, we can repeat the experiment or redesign it

5.

If the data does not support the hypothesis, you should ...

[x]	repeat the experiment several times to ensure the accuracy and reliability of the results
[ ]	write a conclusion based on this first experiment
[ ]	give up
[ ]	make up the results

We would always repeat experiments which we were unsure about. Sometimes, it is not possible because of time.

6.

Which of the following could be a practical reason for unexpected data which does not support the hypothesis?

[ ]	Running out of time
[x]	Incorrect measuring of volumes
[ ]	Being distracted
[ ]	Working on your own

There are many other sources of error too, including making a link between variables that are not really connected. This can happen if you don't really understand the science behind what you are investigating. Ending up with data that doesn't support the hypothesis can actually be very positive and help you to understand more

7.

How would you process the data to work out if your hypothesis is supported?

[x]	Work out the average and compare the groups of data
[ ]	Draw a pie chart
[ ]	Do more tests
[ ]	Put the results into a table

There are other useful techniques such as scatter graphs with lines of best fit

8.

A hypothesis is supported by the results.

[ ]	Always true
[ ]	Always false
[x]	Sometimes true
[ ]	Never

You won't always come up with a set of results that support your hypothesis

9.

What is an opinion based on?

[ ]	Fact
[x]	Beliefs
[ ]	Non factual information
[ ]	Emotions

Opinions and beliefs are not always based on facts but they could be an interpretation of facts. It can sometimes be difficult to spot whether something is an opinion or a fact

10.

Why is a control used in scientific experiments?

[ ]	In order for it to be a fair test
[x]	To compare with the experimental group
[ ]	To increase the sample size
[ ]	To make it more likely that we get a good result

Experiments usually have a negative control. An example would be a control group of patients in a clinical trial of a new drug being given a sugar pill rather than the drug. We can then make a comparison to determine if the drug works and to see if the data supports the hypothesis. A control is a way of checking the reliability of a set of results