1 / 14

WHAT IS “SCIENTIFIC RESEARCH?” WHY DO SCIENTISTS USE IT?

WHAT IS “SCIENTIFIC RESEARCH?” WHY DO SCIENTISTS USE IT? WHAT ARE THE STEPS OF THE SCIENTIFIC METHOD?. RANGE OF SCIENTIFIC RESEARCH DESCRIPTIVE RESEARCH COMPARATIVE DATA ANALYSIS EXPERIMENTAL. DESCRIPTIVE RESEARCH Describing nature using known physical biological or chemical properties

oliver-gill
Download Presentation

WHAT IS “SCIENTIFIC RESEARCH?” WHY DO SCIENTISTS USE IT?

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. WHAT IS “SCIENTIFIC RESEARCH?” WHY DO SCIENTISTS USE IT? WHAT ARE THE STEPS OF THE SCIENTIFIC METHOD?

  2. RANGE OF SCIENTIFIC RESEARCH DESCRIPTIVE RESEARCH COMPARATIVE DATA ANALYSIS EXPERIMENTAL

  3. DESCRIPTIVE RESEARCH Describing nature using known physical biological or chemical properties Often used on things we can’t work with in the lab Ex- center of the earth stars, galaxies DESCRIPTIVE RESEARCH

  4. COMPARATIVE DATA ANALYSIS Linking two things together by analyzing data Ex- Smoking linked to lung cancer

  5. Steps Of The Scientific Method State the problem (in the form of a question) Research the subject State a hypothesis Design and perform an experiment Record results and analyze State your conclusion

  6. PROBLEM STATEMENT • Asks a question based on an observation • RESEARCH THE SUBJECT • 3. STATE A HYPOTHESIS • Answers the problem statement • If……….., then………. Statement • Use the same terms as in the Problem Statement

  7. 4. EXPERIMENT DESIGN Use two groups: Experimental Group Control Group In Experimental Group – Independent variable – what you change Dependent variable – what responds to the I.V. Constants/Controlled Variables– things that remain the same (You do not want “hidden variables”) The Control Group - is for comparison, doesn’t contain the independent variable

  8. 5. RECORD RESULTS AND ANALYZE Quantitative Data- (the numbers) Record data in chart, then graph Analyze data for trends which answer problem statement/hyp. Qualitative Observations- relevant observations listed 1.2.3.4

  9. Quantitative or Qualitative? • The dog is 42 pounds. • The dog is fat. • There are three trees in the field. • The trees are tall.

  10. 6. STATE YOUR CONCLUSION Write a statement that answers the problem statement, addresses your hypothesis and mentions the data for support. A conclusion is an INFERENCE based on observations and prior knowledge.

  11. Observation or inference? • The plant is green • The plant is green thus I believe it is alive. • The woman is married. Observation or inference?

  12. Observation or inference? • The woman is married. • The woman is wearing a wedding band thus I believe that she is married. • Miracle Gro makes plants grow faster.

  13. Observation or inference? • The plant is green • The plant is green thus I believe it is alive. • The woman is married. • The woman is wearing a wedding band thus I believe that she is married. • Miracle Gro makes plants grow faster. • Because the plants with m.g. were taller than the plants w/o m.g., I believe Miracle Gro makes plants grow faster.

More Related