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# Scientific method

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### Scientific method

1. 1. Scientific Method
2. 2. Scientific Method <ul><li>Scientific Method- an approach to a scientific problem. </li></ul>
3. 3. Steps of Scientific Method <ul><li>Investigate - a person ask a question about a particular phenomenon. </li></ul>
4. 4. <ul><li>2. Research- search for information about the topic. </li></ul><ul><li>By researching, a scientist can see what experiments have been done so they don’t duplicate the same experiment. </li></ul>
5. 5. <ul><li>3. Hypothesis- an educated guess. </li></ul><ul><li>4. Experimentation- series of tests to see if the hypothesis is correct. </li></ul>
6. 6. <ul><li>In an experiment, there is a control and a variable. </li></ul><ul><li>Control - a factor that is not changed. </li></ul><ul><li>Variable - a factor that is changed. </li></ul>
7. 7. Variables <ul><li>There are 2 types of variables. </li></ul><ul><li>1. Independent - a variable you control. </li></ul><ul><li>2 . Dependent - a variable you can’t control. </li></ul>
8. 8. For Example <ul><li>The amount of water I put on a plant would be my independent variable. </li></ul><ul><li>The amount of growth the plant has would be the dependent variable. </li></ul>
9. 9. Your turn <ul><li>The temperature I put a plant in is the _______ variable. </li></ul><ul><li>The color the plant turns is the ______ variable. </li></ul>
10. 10. <ul><li>5. Data- the collection and analysis of the information gathered from the experiment. </li></ul><ul><li>2 Types of Data </li></ul><ul><li>a. Numbers </li></ul><ul><li>b. Words </li></ul>
11. 11. <ul><li>1. Numbers - to put in graphs/charts. </li></ul><ul><li>X-axis will contain independent variables </li></ul><ul><li>Y-axis will contain dependent variables </li></ul>
12. 12. <ul><li>2. Words - a description of the experiment </li></ul><ul><li>-For example: color, texture or shape of a leaf. </li></ul>
13. 13. Theory <ul><li>Theory - an explanation about the topic supported by the results of the experiment. </li></ul>
14. 14. Sharing <ul><li>Sharing - sharing the experiment and the results to others. </li></ul><ul><li>Ex: Medical journals, science journals, and lab write-ups </li></ul>
15. 15. Scientific Law <ul><li>Scientific Law- a statement that is always true. </li></ul><ul><li>Scientific Laws are usually backed using math. </li></ul>
16. 16. <ul><li>A theory can become a scientific law. </li></ul><ul><li>A scientific law can also become a theory. </li></ul><ul><li>Hypothesis -> Theory↔ Scientific Law </li></ul>