Module 4/3 Terminology

The independent variable is the....

• result of the experiment
• constant in the experiment
• variable that is observed
• variable that is changed or manipulated

The dependent variable is the...

• variable that remains constant
• variable that is manipulated
• variable being measured or tested
• variable that is not relevant

A control variable is the...

• variable that is manipulated in an experiment
• variable that is kept constant in an experiment
• variable that is irrelevant in an experiment
• variable that changes in an experiment

The accuracy of an experiment refers to...

• the number of trials conducted in the experiment
• the results of your experiment reflecting the expected outcome

• the size of the equipment used in the experiment
• the duration of the experiment

Validity is all about...

• measuring what it claims to measure
• measuring something completely unrelated
• measuring only a small portion of what it claims to measure
• measuring more than what it claims to measure

Good Reliability refers to...

• how many times you can repeat a experiment and get the same results

• how many times you can repeat a experiment and find different results

• Whether you are measuring the correct independent variable

• The number of control variables in your experiment

What are some abiotic factors in a rockpool ecosystem?

• Air, rocks, bacteria, and nutrients
• Sunlight, temperature, water, and minerals
• Wind, soil, plants, and animals
• Clouds, pH levels, fish, and waves

What are some biotic factors in a rockpool ecosystem?

• Algae, crabs, snails, and microorganisms

• Unhappy drenched year 11 students

• Sharks, dolphins, whales, sea turtles
• Water pH, rock type, wind erosion

Symbiosis refers to...

• Close and long-term interactions between different biological species and their environment

• Positive interactions between different biological species

• Negative interactions between different biological species

• Close and long-term interaction between different biological species

Mutualism refers to

• where both organisms benefit

• where one organism benefits at the expense of another

• where one organism benefit and the other is unaffected

• where one organism produces biochemicals either positive or negative to other organisms