1. Put phone in your pocket 
Bellwork: 8/17
Put phone in your pocket 
Week 8/13-8/17
List 2 examples of science and 2 examples of pseudoscience.
What is the scientific method?
Try to list some of the steps

2. Objective
Learn the scientific processes that scientists use to investigate the natural world

3. Today:
Part III Notes
POGIL

4. Materials
Unit Book

5. Homework
Quiz on Google Classroom – due Monday at 11:59pm

6. Unit I: Nature of Science

7. Part III: Scientific Process

8. Intro ? Jane Goodall in Gombe Africa
Observed chimpanzees using sticks to gather termites from a tree
She concluded from this and other observations that chimpanzees had the brain power to use tools for useful function
Is this science or pseudoscience? Explain your reasoning & be prepared to share

9. What is science?

10. Science Way of investigating and learning about the natural world
Accomplished through inquiry

11. Scientific Inquiry Involves…
Making Observations
Gather information about natural world using our senses & scientific tools
Developing Scientific Questions
Forming Logical Hypotheses
Tentative answer to the formulated question
Testing Hypotheses
Through experimentation
Analyzing Data & Drawing Conclusions

12. Identify Which of the Following Questions are Scientific…
How is bug blood different from human blood?
Is rock music better than hip-hop music?
Is vegetarianism more ethical than eating meat?
Does God exist?
Why does bright light cause some people to sneeze?

13. What criteria did you use to determine whether the questions were scientific?

14. Scientific Questions Focuses on natural phenomena
Related to scientific concepts
Investigated through experimentation
Leads to gathering of data about how the natural world works

15. Scientific Questions DO NOT ASK ABOUT WHY??? Supernatural phenomena
Personal preference
Moral values
Religious beliefs
WHY???

16. To be Testable, Scientific Questions Must Include…
Independent Variable: the variable manipulated
Dependent Variable: the variable measured

17. Think
While walking outside one night, you notice that there are a lot of moths gathered around an outside lamp
Think about this observation & develop a scientific question to investigate this phenomenon
Write the question on your note guide. Circle the independent variable & the dependent variable in your question.

18. Scientific Inquiry Often involves controlled experiments
Characteristics of controlled experiment
Manipulate one variable keeping the other variables fixed
Consists of:
Experimental Group: exposed to condition tested
Controlled Group: not exposed to tested condition
Fixed Variable: variables kept constant other than variable tested

19. Think
Based on the scientific questions you developed on the moths, determine the experimental group, control group, & the fixed variables.
Record on your note guide
Be ready to share

20. Practice Problem Do plants grow taller in the light?
Experimental Group
Control Group
Fixed Variable
Independent Variable
Dependent Variable

21. Practice Problem Do plants grow taller in the light?
Experimental Group
Control Group
Fixed Variable
Independent Variable
Dependent Variable

22. Practice Problem
How does leaving Vitamin K out of the diet affect the health of the rat?
Experimental Group
Control Group
Fixed Variable
Independent Variable
Dependent Variable

23. Practice Problem
How does leaving Vitamin K out of the diet affect the health of the rat?
Experimental Group
Control Group
Fixed Variable
Independent Variable
Dependent Variable

24. Hypothesis Tentative answer to the scientific question
Hypothesis must be testable and falsifiable
“If…then…because” statement
A well-written hypothesis includes
Experimental Group
Predicted Result
Possible Reason for the Prediction Result

25. Example of a Well-Written Hypothesis
If the amount of fertilizer given to seeds is increased then the seeds will grow faster because nutrients in fertilizer is required for growth
What is the experimental group?
What is the predicted result?
What is the possible reason for the result?

26. Think
Write down what you think the difference between a hypothesis & a scientific theory is.

27. Scientific Theory
Explanation for something that has occurred in nature
Tested by many different experiments and many different experimenters
Distinction from hypothesis – involves a single experiment

28. Thumbs Up = Scientific Theory Thumbs Down = Hypothesis
Is the explanation of evolution by natural selection a scientific theory or a hypothesis?

29. Characteristics of a Scientific Theory
Best possible explanation
Not the absolute truth
Tentative
Example:
“Dinosaur extinction is a result of a huge asteroid that struck Earth 65 million years ago”

30. Think
Why is the theory on dinosaur extinction not set in stone?

31. Scientific Inquiry Does not always include: Ex. Discovery Science
Controlled Experiments
Testable Hypotheses
Ex. Discovery Science
Descriptive
Observes and collects data that describes natural structures or processes

32. Examples of Discovery Science
Mapping of the human genome
Accidental discovery of antibiotic penicillin by Alexander Fleming
Identifying new species of plants and animals
Jane Goodall’s observation of chimpanzee behavior