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Understanding Living and Non-Living Things in Science Inquiry

Learn about the characteristics of living and non-living things through scientific inquiry. Explore observations, inferences, variables, and data collection in this engaging lesson.

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Understanding Living and Non-Living Things in Science Inquiry

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  1. Warm up List 3 ways you know that fire is not alive. List 5 ways you know that a worm is living.

  2. Warm up List 3 ways you know that fire is not alive. No cells Doesn’t reproduce Does not adapt over time (long term). List 5 ways you know that a worm is living. Maintains homeostasis. Made up of cells Adapts over time. Is organized. Reproduces Requires energy.

  3. Framing the Investigation • Designing the Investigation • Collecting and Presenting Data

  4. Scientific inquiry • Framing the Investigation • Designing the Investigation • Collecting and Presenting Data

  5. Scientific inquiryframing the investigation • Gather background information. • Observation: something you KNOW (what you see, hear, smell, or feel) • Inference: something you THINK (explaining or guessing about how something works or why something happened)

  6. Example Observations? (What you know) Inferences? (What you think is probably true)

  7. Note the Differences • In laboratory exercises, record observations NOT inferences • Inferences may be used when writing the conclusion in your lab report. • Let’s test your observation skills…

  8. Observations and inferences • ___ A bird is sitting on a post • ___ A bird is sitting on it’s nest • ___ A bird is on the ground because it is hurt • ___ A bird is on the ground because it is looking for food • ___ A chirping noise from the tree must be the bird’s babies • ___ The baby birds are chirping because they are hungry • ___ The baby birds are 20 feet off the ground

  9. Scientific inquiryFRAMING the investigation • Come up with a question (hypothesis) that can be tested. • If, then statement linking independent and dependent variables. • Controls stated.

  10. Scientific inquiryframing the investigation Control: thing that stays the same. Variable: thing you change (are testing).

  11. Scientific inquiryframing the investigation 2 Kinds of Variables • Independent variable: thing the experimenter changes; variable that stays the same no matter what. • Dependent variable: variable that depends on the independent variable; response that is measured. (Independent variable) causes a change in (Dependent Variable) and it isn't possible that (Dependent Variable) could cause a change in (Independent Variable).

  12. Scientific inquirydesigning the investigation • List materials. • Detailedprocedure. • At least 3 trials!

  13. Scientific inquiryCollecting and presenting data • Make Observations in Tables (title them!) Qualitative Observations – describe something by sight, touch, smell, taste, or hearing Quantitative Observations – describes something by measuring it (mass, length, etc) and has numbers; includes units. n = numbers!

  14. Scientific inquiryCollecting and presenting data • Graph data • Include units, labels, and title.

  15. Scientific inquiryCollecting and presenting data • Discuss data • Was hypothesis true or false? • Support with data, making references to tables and graphs. • List sources of error. • Ask further questions/propose further experiments.

  16. Warm up--9/19/11 Please put your homework in the appropriate basket. List 3 things you must include in a table. Title Units Average What is the difference between qualitative and quantitative data? Qualitative: describes something by sight, touch, smell, taste, or hearing Quantitative: describes something by measuring it and using numbers

  17. Reminder—test tomorrowbring a book

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