AICE MARINE SCIENCE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS COMPLETE STUDY GUIDE

AICE MARINE SCIENCE UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
COMPLETE STUDY GUIDE

●● What is a prediction?
Answer: An explanation of what will happen in an experiment if the
hypothesis is correct.


●● What are the variables of an experiment?
Answer: Conditions in an experiment that can be controlled or changed.


●● What is an independent variable?
Answer: The variable that is changed in an experiment.
- There should be five to ten different values.
- The range of values should be appropriate for the experiment (e.g.,
goldfish can live in water as warm as 30°C and as cold as 15°C;
therefore, in an experiment testing the effect of temperature on goldfish,
the range of values for the independent variable should be 15°C to
30°C).


●● What is a dependent variable?
Answer: The variable that is measured in an experiment.

, - To ensure results are reliable, an experiment should be repeated at least
three times.


●● What are control variables?
Answer: The variables that are kept constant during an experiment (e.g.,
temperature, oxygen concentration, carbon dioxide concentration, pH,
light intensity, light wavelength).


●● What are control variables for organisms?
Answer: - Species
- Age
- Size
- Sex
- Origin


●● What are confounding variables?
Answer: Variables that cannot be controlled in field-based experiment,
but must be measured to see if they affect the results of an experiment.


●● What can be used to control temperature?
Answer: A water bath.


●● What can be used to control pH?