Scientfic Method
What are the steps of the scientific method?
What is observation, hypothesis, experiment, analysis, conclusion?
What is an independent variable?
What is the variable that is changed or controlled in an experiment?
What is bias in research?
What is a prejudice or a preference that skews results?
Define precision in measurement.
What is how close multiple measurements are to each other?
What is microalgae?
What are tiny photosynthetic organisms that can be used for biofuels?
What is a hypothesis?
What is a testable prediction about the outcome of an experiment?
What type of variable is kept constant in an experiment?
What is a controlled variable?
How can the presence of an observer influence an experiment?
What is it can lead to observer bias, where the observer's expectations affect the outcomes?
True or False: Precision means your measurements are close to the true value.
What is False; precision refers to consistency among repeated measurements, not necessarily accuracy.
What experimental factor might you test to maximize the growth of microalgae for fuel production?
What is the amount of light exposure?
Why is it important to repeat experiments?
What is to ensure reliability and consistency of results?
Give an example of an independent variable in an experiment testing the effect of fertilizer on plant growth.
What is the amount of fertilizer used?
What is confirmation bias?
What is the tendency to favor information that confirms one's existing beliefs or hypotheses?
Why is it important to use precise measurements in scientific experiments?
What is to minimize errors and improve the reliability of results?
Name a potential benefit of using microalgae as a biofuel source.
What is lower greenhouse gas emissions compared to fossil fuels?
What role does a control group play in an experiment?
What is it serves as a basis for comparison to evaluate the effect of the independent variable?
How can changing more than one variable in an experiment affect your results?
What is it makes it difficult to determine which variable influenced the results?
Name ways to prevent bias in an experiment.
What is using a randomized sample, blind Study, and repetition?
If you shoot arrows at a target and they all hit in the same spot but far from the bullseye, what is this called?
What is precision without accuracy?
Explain how a controlled experiment using microalgae could help in biofuel production.
What is testing different conditions (light, nutrients) to see which maximizes fuel production while controlling other variables?
Describe how you would design an experiment to test a hypothesis about plant growth.
What is creating a detailed procedure that includes controls and variables?
In an experiment testing the effect of sunlight on plant growth, what would be the dependent variable?
What is the growth of the plants?
Why is random selection important in scientific studies?
What is it helps ensure that the sample is representative of the larger population, reducing bias?
If a ruler measures an object as 2.5 cm and a digital scale measures it as 25 mm, are the measurements precise and/or accurate?
What is they are equivalent and thus both precise and accurate; pointing out the conversion of units.
What environmental condition might affect microalgae growth?
What are temperature or nutrient levels in the water?