BIO120H1 Lecture : Bio lab 2 notes Oct 20 2009

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Scientific method are: preliminary pbservation, problem, hypothesis, experiment ot controlled observation and theory. Cyclical j the experiment provides more accurate pbservation permitting a refinement pf the problem, starting the process again. T the quality of the scientific work depends on the correctness of the observation. T before approaching a problem, the observation should determine what scientifix problem to address in the experiment. T after observation j need to define a problem. T fundamental part of the scientific method is the recognition of good problems! T bes problems should be relevance and the capacity to be tested. T guess a answer to the problem j hypothese. T hypothesis are not random guesses but are statements based on all of the relevant observations. T a fundamental feature of the scientific method is that hypotheses are never be proven, they can only be disproved j null hypothese. T null hypothese (h0) j assume the experimental treatments will have no effect.

Related Questions

choose two nonhuman species that interact with each other, such asbees and flowers, or predator and prey species, or two species thatcompete. Or, you can consider the effect of an environmental factoron living nonhuman organisms, such as the effects of light or soundon plants or animals, or how food preference, or nutrientquantity/quality affect plants or animals. These are just a fewexamples. Your observations may lead you to many other types ofquestions about living organisms, their interactions, andrequirements for life.

Start with an Introduction/Observation and move through the stepsof the scientific method as outlined below. Your paper shouldfollow this format.

Remember, you don't have to actually do the experiment, just writewhat you would do to test your hypothesis. The experiment youcreate to test your hypothesis should contain a control andtreatment group and be detailed enough that it could bereproducible by others.

Observations/Introduction:

Describe your observation.
Include background information about your observations that youhave found using references.
List and cite references using APA format.
Question: Ask a question about the observation that you havemade.

Hypothesis: Write a statement that describes your explanation forthe observation and question.

Prediction: What do you predict as outcomes (results) of thisexperiment? (An if-then statement)

Controlled Experiment and Methods:

Describe the experiment.
Describe variables to be held constant.
Note variable to be tested.
List controls.
Tells what data will be collected.
Describe how only one variable is being tested at a time, whileothers are held constant.
Results: Give the results (data) for the experiment. This will becreated (imagined) by you because you are not actually doing thisexperiment.

Conclusion/Discussion:

Do you reject or accept the hypothesis based on the results?
Discuss what this means in terms of the hypothesis, or need foradditional experiments, or perhaps practical use of the results.

lilacplatypus641

The scientific method

You are living in your very first apartment. After a month younotice that there is a large buildup of black mildew around thetub. Late at night you see an infomercial about a new cleaningproduct "Zap Gone" that claims to be able to fix this problem. youdecide to spend the $19.95 and order the product. when the productarrives you decide to test it by spraying half of the tub with the"Zap gone" cleaning product and the other half you spray withwater.

a. what is the initial observation?

b. state the question

c. state your null and alternative hypothesis

d. identify the control group

After 3 days of treatment there is no visible change on eitherside of the tub.

e. what should your conclusion be for this experiment?

f. what would be the next step in the scientific method?

lilaccockroach920

If your hypothesis is not supported by the results of theexperiment, you should _______ .

	A.change your observation and ask a different question.
B.	ask a different question and restate the hypothesis.
	C. ask a different question and alter the experiment.
D.	restate the hypothesis and alter the experiment.
E.	None of the above.

goldalligator149

BIO120H1 Lecture : Bio lab 2 notes Oct 20 2009

BIO120H1 Full Course Notes

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