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SCIENTIFIC METHOD (BIOLOGY)

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Created on August 18, 2020

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Scientific Method

2020-2021

Index

Steps

Song

Definition

Step 3

Step1

Step 2

Step 6

Step 5

Step 4

Summary

Textbook pages

Definition

Scientific Method: A serie of organized steps, to explore observations and answer the questions to solve a problem.

Scientific Method song

Steps of the scientific method

1. Ask a question2. Do background research 3. Construct a hypothesis 4. Test your hypothesis (Experiment)

5. Collect, present and analyze your data. 6. Draw a conclusion

Step 1.

Ask a question The scientific method starts when you ask a question about something that you observe: How, What, When, Who, Which, Why, or Where?

Step 2. Do background research

Rather than starting from scratch, you must use information about the topic and about previous work/investigations done.

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Step 3. Construct a hypothesis

In order to answer your question, with an explanation that can be tested. A good hypothesis allows you to then make a prediction: "If ___ then___because_____"

Hypothesis?

Step 3. Construct a hypothesis

"If ___ then___because_____"

If water is added to a gummy bear, then it will increase its size because gummy bear will absorb water.

Construct a hypothesis

In this step, you must identify the independent variable, the dependent variable and the constants, and say how you will collect the data.

Independent variable

What will you manipulate in the experiment. Example: Amount of water

Dependent variable

The result you are expecting. What can you measure after the experiment is done? Example: The size of the gummy bear

Constant

Something that will never change Example: *The brand of the gummy bear. *The type of liquid you will use

Control

Something to compare: Example: *The original gummy bear*The original gummy bear

Step 4. Test hypothesis

By Doing an Experiment: Your experiment tests whether your prediction is accurate and thus your hypothesis is supported or not.

Step 4. Test hypothesis

*Make sure that you change only one variable at a time. * Keep all other variables or conditions the same. *Repeat your experiments at least 4 times.

Step 4. Includes:

Materials List Experimental Procedure

Step 5. Collect, Present and Analyze Your Data

* During the experiment, you collect your measurements and analyze them to see if they support your hypothesis or not.

Step 5. To analyze data we should use:

Charts , tables, journals, graphs.

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