Biology Lesson14 Tropism Lab Design

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Biology Lesson14 Tropism Lab Design

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Science 10: Plant Tropism Lab Design Activity

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Overview: In this activity you will be completely designing a lab experiment to study the

effect of a variable of your choice on tropism in plants. This variable could be nutritive

(amount of water or sunlight) or it could be conditional (orientation of plant etc.). The

first thing that should appear on this experiment is an abstract. An abstract is a

description of what you know of your area of study and how your experiment will be able

to test ideas and what kind of information can be expected from the experiment and what

results you wish to see. In other words you are telling me what you know about tropisms

and explaining how your experiment will show that your idea is correct. This should also

include which tropism you are studying and how you think the manipulations you will

make to your variable will influence the growth patterns of the plant.

Other than that, your experiment should follow the same pattern as any other lab we

have done in this class. State a problem, generate a hypothesis, make a list of materials

you would need and create a DETAILED procedure that includes descriptions of

activities that will occur, measurements that would be taken, and observations that will

have to be made. Also include a description of how you will analyze the results you get

and what your variables (manipulated, responding and controlled) are as well as what you

will use as a control for the experiment.

Procedure: Your procedure for this project should be much more detailed than the

previous lab design activity. The reason for this is that this experiment would need a

longer period of observation. You should be specific about the amount of materials you

would require, why you would need them and how you would control such variables to

ensure the validity of your experiment. Also identify what type of plant you will be using

and why you would use this plant over other types. Identify whether you would use any

growth enhancing chemicals and how they would be administered to the plants and how

you would ensure they were controlled in their effects.

Analysis: Explain what you are looking for as results and how you will analyze any

results you do get and how you will relate them to your hypothesis. Make a list of areas

you will be watching in your experiment and what you are looking for, and how you will

analyze any data that is recorded in these areas. You may also wish to explain in this

section how any analysis you make of your results may be applied to real world

situations.

Evaluation: See next page


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Initiating and Planning:

The experiment is thoroughly planned, materials detailing what tasks need to be completed and when are present and very detailed. An

excellent well thought out hypothesis and procedure to test it is present as well as detailed descriptions of expected findings, and activities

planned are all related to the investigation and defense of this hypothesis. Abstract is thorough and show great understanding of the subject.

The experiment is well planned, materials detailing what tasks need to be completed and when are present. A good hypothesis and procedure

to test it is present as well as descriptions of expected findings, and activities planned are mostly related to the investigation and defense of this

hypothesis. Abstract is good and shows a good understanding of the subject.

The experiment is reasonably planned, some planning materials are present. A reasonable hypothesis and procedure to test it is present as well

as reasonable descriptions of expected findings, and activities planned are somewhat related to the investigation and defense of this hypothesis.

Abstract is reasonable and shows some understanding of the subject.

The experiment is haphazardly planned, little evidence of planning present. A sketchy hypothesis and procedure to test it is present, and

activities planned are vaguely related to the investigation and defense of this hypothesis. Abstract is weak and shows little understanding of the

subject.

The experiment is poorly planned, no evidence of planning present. A poor hypothesis and procedure to test it is present, and activities were

not related to the investigation and defense of this hypothesis. Abstract is poor/absent and shows no understanding of the subject.

Hypothesis:

Hypothesis is in proper format and is insightful. It states very specifically how the manipulated variable will cause or affect plant

tropisms. It clearly speaks to how the procedure will allow them to confirm their hypothesis.

Hypothesis is in proper format. It states how the manipulated variable will cause or affect plant tropisms. It speaks vaguely to

how the procedure will allow them to confirm their hypothesis.

Hypothesis is not in proper format. It does not state how the manipulated variable will cause or affect plant tropisms and does not

speak to how the hypothesis will be confirmed.

Overall (Format/Quality):

5 Position or topic is presented in a well-organized fashion and ideas are expressed clearly and concisely. Ideas show an in-depth

understanding of the subject. Experiment flows very well, language is very descriptive and accurate. Format is creative and

appropriate. Spelling and word choice are excellent.

4 Position or topic is presented in an organized fashion and ideas are well expressed. Ideas show an understanding of the subject.

Experiment flows well, language is appropriate and effective. Proper format is present. Spelling and word choice are good.

3 Position or topic is somewhat organized and some ideas are expressed. Some understanding of the subject is evident.

Experiment is somewhat unified, language is acceptable. Proper format is partially followed. Spelling and word choice are

acceptable.

2 Position or topic is poorly organized and few ideas are expressed. Little understanding of the subject is evident.

Experiment seems to jump from idea to idea, language is ineffective. Format is weak and detracts from the project. Spelling

and word choice are weak.

1 No topic choice is evident, and ideas are unrelated. No understanding of subject is evident. Paper is not unified, language is

poor. Proper format is absent. Spelling and word choice are poor.

Design

5 All key variables are identified and the problem is clearly stated in form of a question

4 Most key variables are identified and a partial problem is stated in the form of a question

3 Some key variables are identified and the problem is vaguely stated in form of a question

2 Few key variables are identified and the problem is incorrectly stated

1 Little or no key variables are identified and problem is not stated in form of a question

0 Not done

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