method of presenting experiment for form 6

8/13/2019 method of presenting experiment for form 6

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Program VENI-VIDI-VICI

Hand-on Experiment


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Title of the Experiment

Choose a title that reflects your topic

Usually is in the form a `Question?What problem are you trying to solve

or/answer?

Example: How does caffeine affect the growthof a plant?


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Purpose or aims

Write 1 to 3 sentences describing what you

want to find out in this experiment.

Example: The purpose of this experiment is to find out

if a pea plant will grow taller when given caffeine

rather than water.


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Research

Develop 3 questions that you want to answer about yourtopic.

Try to use various sources for your research.

Suggested sources:

Books

Magazines

Newspapers

Internet

Research should be designed to get

background information about your topic,

before you begin your experiment.


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Hypothesis

Make your guess

Once you have done some research, you will need

to come up with a hypothesis. Use your research to make an educated guess about

how you think your experiment will turn out.

Use the If the amount of __________ is (increased or decreased) then

I think ________will (increase or decrease). format

Example: If I pour 100ml of coffee on four pea plants and pour 100ml ofwater in another four pea plants, then I think the plants with coffee will

grow taller because caffeine will stimulate the plants.


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Materials

Make a complete list of everythingyou will use in your experiment.

Tell how many and how much of

each object used.

Use metric measures only.


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Apparatus

Make a complete list of equipment andglassware used in the experiment.

Sketch the diagram or layout of the

experiment


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Procedure

Design your experiment Design your experiment so that they only test for one thing.

Make sure that you do the same things to all groups of objects beingtested.

Example: If you are testing plants:

Use the same seeds.

Plant all of them with the same soil.

Put them all in the same amount of light for the same amount of time.

The only thing that should be different about the plants is that one

received coffee and the other water.


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Procedure

To increase the validity of your experiment

Make sure to keep a control group. Keep in mind sample size.

The more objects in your sample the more valid your

experiment.

Use multiple trials. (At least three.)


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Procedure

Write down step-by-step directions on how

to do your experiment. Do not leave anything out!

Example

Given in the next slide


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Example:

1. Get 8 pea plants ( 100 cm tall).

2. Place 4 pea plants on each tray.

3. Label one set of plants Caffeine.

4. Label the second set Water.

5. Pour 100ml of coffee( with caffeine ) onto the soil of each

plant twice a week.

6. Pour 100ml of water onto the soil of each plant twice a

week.

7. Measure each plant with a metric ruler

8. Record data in record book.

Procedure


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Do and Observe

your experiment.What are your variables?

Independent Variable (the thing you change): (X )

Dependent Variable (data you collect) (Y)Constants

What will you keep the same throughout the

experiment (C)

Record all your observations if there are changes with regard to

the variable parameters concerned: ie: temp, time, activity, amount,

colour, viscosity, density, intensity etc


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Make Charts and Graphs

Display data using charts, tables, and graphs.

Use the Graph Club or Inspiration program. Choose the correct graphs for your data.

Bar-comparison

Pie-percentage Line-change/time


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Results and Discussion

Using your data write a few sentences how yourexperiment turned out.

Example:

From reading my charts and graphs, I know that PlantGroup #1 grew an average of 40cm with 100ml of coffee.

Plant Group #2 grew and average of 20cm with 100ml of

water. The Plant Group that was given coffee grew 20cmmore on the average than the Plant Group that was givenwater.


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Conclusion

Write down why you think your experiment turned

out the way it did, include if your hypothesis was

supported or not.

Be sure to use the term My hypothesis was/was not

supported.

Do not say I was right/wrong.

Even when your hypothesis was not supported you gain

information about your topic.

Use scientific reasoning for conclusion.


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Conclusion

Example:

My hypothesis was supported. The plants that werewatered with coffee ( caffeine ) grew taller than those

that were given water. Therefore, caffeine has a positive

effect on the growth of pea plants. This may be due the

fact that caffeine is a stimulant. The caffeine could have

stimulated the plant to grow.


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Future Considerations

Tell what variable you would change if you

could do the experiment again. Tell how you might take your experiment to

the next step.


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Future Considerations

Example

If I could do this experiment again , the variable I

would change would be the amount of caffeine I wouldplace in each plant group. I would use 50ml for plant

group #1, 100ml for plant group #2, and 150ml for plant

group #3. I would also have three control groups of

plants. One would get 50ml of water. One would get100ml of water. And one would get 150ml of water. I

want to see which amount of caffeine helps plants grow

the tallest.


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method of presenting experiment for form 6

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