1. Steps of the Scientific Method
Identify a Problem
Gathering Information
Make a Hypothesis
Perform an Experiment
Analyze results
Draw Conclusions
Repeat & Communicate

2. Example:. Fish are dying in a pond
Example: Fish are dying in a pond. We investigate the pond & find it is near a housing development, highway, and a farm. We predict that fertilizer from the lawns of the houses is washing into the pond and killing the fish.

3. Scientific Method Making a hypothesis Specific to an experiment
prediction about what you think is going to happen in an experiment
Specific to an experiment
Testable
If, then format

4. How could we test these questions?
Does cigarette smoking increases the risk of lung cancer?
Can eating breakfast increases performance in school?
How could we raise school spirit?
What would your hypothesis be?

5. Perform an experiment Controlled Planned out  Procedure
Collect Data (observations) to try and back up your hypothesis.

6. Observation vs. Inference

7. Procedure Activity Notes Card Pair Up
Draw a simple picture on one side of the note card.
On the other side, write a procedure to explain to someone else how to draw the same exact picture.
Pair Up
Using the procedure only, see if your partner can draw your picture.
Hint: don’t tell them what it is!

8. Controlled Experiment!
Variable
Any factor that can change
Only want to change one factor at a time! Why?
Constants: variables you keep the same
Independent vs. Dependent
Control Group
Collect Data
Qualitative vs. Quantitative
Controlled Experiment!

9. You want to know what color flowers butterflies like best
You want to know what color flowers butterflies like best. You choose an area you know is naturally inhabited by butterflies. You plant 6 rows of flowers, each row a different color of the same type of flower. Twice a day, each day (morning & evening) you add up the number of butterflies found on each different color of flowers.
What is your independent variable?
What is your dependent variable?
What are your constants?

10. Steps of the Scientific Method
Identify a Problem
Gathering Information
Make a Hypothesis
Perform an Experiment
Analyze results
Draw Conclusions
Repeat & Communicate

11. Scientific Method Analyze the Data What does the data mean?
Identify relationships

12. Analyze Q: What does this data say?
A: As temperature increases, dissolved oxygen decreases
Temperature
(0C)
Dissolved Oxygen (ppm) 20 45 30 33 40 29 50 15 60 10

13. Scientific Method Draw conclusions
My data did support my hypothesis that…
Or…
My data did not support my hypothesis that…

14. What would your conclusion be?
Hypothesis  If maintenance increases the number of recycling cans in the lunch room, then the amount of trash will decrease.
Data:
# of recycling cans
Amount of trash (tons) 2
250 3
200 4
150 5 6
149

15. Last is to…
Repeat
Why would this be important?

16. Results of Science Scientific Theory
explanation that has been supported by many experiments
Makes Predictions
Has lots of evidence to support those predictions
Is constantly being tested!