2. announcement
Turn in your hw
get ready for the quiz

3. Short Quiz 9/2/13 1. Hypothesis formula (fill in the blank)
(A) ………………. , (B) ,(C)
2. What is the formula for research question?
3. What is the difference between IV, DV,
4. Write IV, DV, and hypothesis
Research question: How does calcium affect bone strength

4. 1:6 To understand a proverb, and the interpretation; the words of the wise, and their dark sayings.   1:7 The fear of the LORD is the beginning of knowledge: but fools despise wisdom and instruction.  

5. Formula: If______________, what I am going to do Then_____________ this will happen

6. Practice Hypothesis Think about this question.
What effect does food color have on the amount of food fish eat?
IV:
DV:
Hypothesis

7. 2. Which grade will have the greatest number of student who do homework
DV:
RV:

8. 2. Which grade will have the greatest number of students who do homework
DV: grade
RV: number of students who do homework
Hypothesis: If I count number of students who do homework for all grades, then ____ grade will have the most number of students who do homework

9. control
DEF: What you compare your result to: independent variable is not changed in control group.
Why do we need control: without control, it is difficult to know what is causing the change.

10. practice
1. How does antibiotics affect amount of bacteria in a agar plate?
Control group:
Experiment group:

11. practice
How does music affect our attention
control:
Experiment group

12. practice
1. how does calcium affect our bone strength
Control group:

13. SIMPSON WORKSHEET