1 / 20

Monday

Monday. Using your notes, describe the 5 characteristics of life. SWBAT: Describe the scientific methods and how they apply to science. Bell Ringer:. Objective:. Topic: scientific Method.

glain
Download Presentation

Monday

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Monday • Using your notes, describe the 5 characteristics of life. • SWBAT: Describe the scientific methods and how they apply to science. Bell Ringer: Objective:

  2. Topic: scientific Method

  3. Scientific Methods- the steps commonly used by scientists in gathering information to test hypotheses and solve problems. • Ask a question • (Identify the problem) • Observations/Research • Form a hypothesis • Perform the experiment • Collect and Analyze Data • Make a conclusion • Repeat

  4. What is the Scientific Method??

  5. What makes a good Scientific Question? • Always testable • Testable-This means that you can do an experiment to test your hypothesis. • and Avoids opinion. • Specific - Example: Does handling frogs cause warts? instead of something like: Can an animal mess up your skin? • Keeps the scientist focused on a single experiment. Which brand of popcorn will pop the most popcorn kernels?

  6. Does hot water freeze faster than cold water?Is it a good scientific question?YES NO

  7. Does hot water freeze faster than cold water?Is it a good scientific question? YES NO It is testable, you could freeze hot water and cold water. It also avoids opinions, this is an observable fact. It specifically explains what is being done (freezing) and to what substances (hot and cold water) It keeps the scientist focused because they are only changing one thing- the type of water.

  8. Do cats make better pets than dogs? Is it a good scientific question? YES NO

  9. Do cats make better pets than dogs? Is it a good scientific question?YES NO : It is not testable, it would be difficult to measure and explain “better.” It does not avoid opinion, who makes better pets is an opinion X • : It is not very specific, “better” is broad and vague. X • : It does not keep the scientist focused because it is not setting them up for just one experiment. X

  10. Step 2: Observations & ResearchWhat are observations?

  11. Step 2: Observations & Research • Remember, observations are made with the 5 senses. • You research your topic to help you build a better procedure as well as to help guide your hypothesis and data analysis

  12. Step 3: Hypothesis • A testable explanation for a question or problem • Example: If I water the plant, then it will grow

  13. 4) Experiments: • A structured procedure for collecting information to test a hypothesis • Variable – factor in the experiment that is being tested • A good or “valid” experiment will only have ONE variable being tested!

  14. Experiments Cont. • An experimenter changes one factor (independent variable), and observes or measures what happens (dependent variable). • Control- the part of an experiment in which all conditions are kept the same

  15. 5: Data and Analysis • Data- the information gathered from experiments • Quantitative: seen incharts, tables, or graphs (numbers) • Qualitative: Descriptive

  16. 6:Conclusion • The answer to the hypothesis based on the data obtained from the experiment • Your hypothesis will either be accepted or rejected • In order to verify the results, experiments must be retested.

  17. 7: Repeat • Why do we repeat experiments?

  18. How does this translate to real life? • Identify the steps of the Scientific Method in the following experiment…

  19. APPLY YOUR KNOWLEDGE You have often wondered if Gatorade would make a plant grow faster than water. After doing some research on Gatorade, you have decided that you believe Gatorade would make the plant grow faster than water. You decide to set up an experiment. You buy two plants and keep them both in the same window for two weeks. One plant receives a daily watering and the other receives a daily dose of Gatorade. Each day, you measure the plants and record the data in a chart. At the end of the two weeks, your hypothesis was proven correct.

  20. Your Turn! • On your bell ringer sheet, design an experiment, using the scientific method. • Remember the rules, and look at your notes. • Use the question “Which brand of paper towels is the most absorbent?”

More Related