Do I understand about fair testing?: Solution

Question 1

A 'fair test' must always involve:

Solution:

1. only one thing that is changed
2. some way that measurements are made to determine the results
3. the use of specialised science equipment
4. all variables being kept the same

Answer:

1. only one thing that is changed

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Question 2

In the mnemonic Cows Moos Softly:

Solution:

1. the C in cows reminds us that everything has to be changed
2. the M in moos stands for the variable that is measured
3. the S in softly reminds us to repeat the investigation several times
4. has nothing to do with fair testing

Answer:

1. the M in moos stands for the variable that is measured

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Question 3

Scientists call a general proposition that tries to explain a phenomenon:

Solution:

1. a prediction
2. an hypothesis
3. a guess
4. a conclusion

Answer:

1. an hypothesis

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Question 4

Repeating an experiment a number of times ensures that it is accurate.

Solution:

1. True
2. False

Answer:

1. False

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Question 5

When conducting investigations with living things it is often necessary to:

Solution:

1. replicate the activity
2. ignore results of those that do not survive

Answer:

1. replicate the activity

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