1. Drill: 9/15/16 What are some flaws in the experiment?
An advertisement claims their fertilizer increases the growth of tomato plants by 25 percent. A student decides to perform an experiment to test this claim. She performs the following procedure.
Choose three similar-sized tomato plants.
Plant each tomato plant in a small pot.
Place all three small pots into one container and place on a window sill.
Add fertilizer mixed with water to Plants 1 and 2.
Add only water to Plant 3.
Record the heights of the three plants
after four weeks.
Drill: 9/15/16
What are some flaws in the experiment?
How could it be improved?

2. Agenda
Go over quiz Upcoming Events Formal Lab Report Guide Scientific Method Review/Lab

3. Homework Start reading chapter 3 Lab Report Due 9/20/16 (B-day)
46-57 are review of scientific process and chemistry (skim this if you feel comfortable doing so, if not, take notes)
58-66 are getting into new content (take notes on this new content)
I WILL CHECK THESE NOTES
Lab Report Due 9/20/16 (B-day)
9/21/16 (A-day)

4. Steps of the scientific method?
Who remembers the steps?

5. Pre-lab What is a our purpose in this lab?
What is the independent variable?
The dependent variable?
Other things you should consider when doing your experiment?
Any questions?

6. Analysis Questions to answer:
Was your hypothesis correct or incorrect?
Was there a difference in left foot and right foot?
Did gender play a role in data collection?
What errors might have you encountered in your data collection process?