1. How do scientists do science?
BELL RINGER!
How do scientists do science?
Remember that if you don’t know I want to hear your best guess. It is okay to be wrong. :D

2. The Scientific Method

5. Sewer Lice! Used in New York City water treatment
Eat waste in the water
Make water drinkable almost instantly!

6. Paper Airplane Lab
Purpose: To design a paper airplane which flies the farthest in class
Hypothesis: If I build a paper airplane, it will fly farther than any airplane built by my classmates
Materials: paper, measuring tape

7. Procedure Brainstorm an airplane design
Build a paper airplane according to the design
Fly the airplane
Compare the distance flown with my classmate’s distances

8. Data Mrs. Piner (You name) (Furthest Flier) (Person of your choice)
Designer
Distance (m)
Mrs. Piner
(You name)
(Furthest Flier)
(Person of your choice)

9. Results: My airplane (did/did not) fly the farthest in class
Conclusions: (yes/No), my hypothesis (was/was not) supported by the data. I believe my airplane (did/did not) fly the farthest because _____________________________________________________. By doing this experiment, I learned that _______________________.
Sources of Error:

10. Definitions Independent Variable (I.V.)
The variable that is changed by the experimenter
Also called the Mannipulated Variable
The I.V. in the airplane lab was:

11. Dependent Variable (D.V.)
The variable that is being measured
Also called the Responding Variable
The D.V. in the airplane lab was:

12. Constant
Variables that are kept the same for each experiment
The constants in the airplane lab were:

13. Control
The experiment that has not had any variables changed and is used as a standard comparison.

14. Important! All experiments must be reproducible
If your results don’t match your hypothesis, you change your hypothesis and perform a new experiment, you DO NOT change the data to fit the hypothesis.