Solving a biological problem

A testable explanation for an observation is called a:

• 1 Hypothesis
• 2 Theory
• 3 Law
• 4 Conclusion

In an experiment, the factor that is deliberately changed is the:

• 1 Dependent variable
• 2 Control
• 3 Independent variable
• 4 Constant

A control group is used to:

• 1 Compare with the group being tested
• 2 Avoid recording data
• 3 Change the hypothesis
• 4 Increase the result

Which step comes first in the scientific method?

• 1 Publishing the result
• 2 Recognising a problem
• 3 Writing the conclusion
• 4 Analysing data

A theory differs from a hypothesis because a theory:

• 1 Cannot be changed ever
• 2 Is only about animals
• 3 Has been supported by a lot of evidence
• 4 Is a guess

Data collected as numbers is called:

• 1 A control
• 2 Qualitative data
• 3 A hypothesis
• 4 Quantitative data

The final step of a scientific investigation is to:

• 1 Draw and report conclusions
• 2 Change the hypothesis before testing
• 3 Hide the data
• 4 Stop observing

An observation involving descriptions such as colour is:

• 1 A law
• 2 A theory
• 3 Quantitative
• 4 Qualitative

A variable kept the same during an experiment is the:

• 1 Controlled variable
• 2 Dependent variable
• 3 Result
• 4 Independent variable