1. The smallest shark is the tsuranagakobitozame :
Did You Know?
The smallest shark is the tsuranagakobitozame :
a Japanese name that means, “dwarf shark with a long face,” also called dwarf dog-shark. This shark can fit in the palm of your hand; the adults measure about 5 inches (13 centimeters) in length.

2. Objective: Know the parts of an experiment Agenda:
August 26th 2010
Objective: Know the parts of an experiment
Agenda:
Brief notes on parts of experiment
Worksheet of parts of and experiment
Homework:
You MUST have all of the following complete to take tomorrow’s quiz!
-KIM chart
- Hypothesis worksheet
- Parts of an experiment worksheet

3. Experimental Variables:
Independent Variable
controlled by experimenter
Dependent Variable
an action; a verb; it changes
CAUSE
EFFECT…
Type of water
Growth of plant

4. Experimental Set up: CONTROL GROUP: EXPERIMENTAL GROUP:
NO changes- All conditions kept the same – cont. as usual
Baseline for comparison
No action taken
EXPERIMENTAL GROUP:
Change made – called the test group- kept the same except for the ONE thing being tested
Action taken
Change ONLY the water to ‘Martha Stewart’ brand
Cont. as normal with tap water

5. Constants (Control)
Are all things kept THE SAME in the experiment to make it RELIABLE.
Examples:
IDENTICAL kind of plant
SAME size of bowl
EQUAL amounts of dirt
SAME time of watering plants
SAME kind of….

6. Identifying Parts of an Experiment
YOUR JOB:
Identifying Parts of an Experiment
15-20 minutes 
Work w/ partner to complete, Identifying Parts of Exp  Stay with group!
5 minutes 
Review . 6

7. ISN Page 19, Scenario #1 IV = Fertilizer (CAUSE) DV = Constants =
Control =
Hypothesis =
Improvement =
Fertilizer (CAUSE)
Height of tomato plant (EFFECT)
Same soil, equal amts. of fert., same location, same amt. of water
4th pot with no fertilizer – she cont. growing it as usual
IF I use a ‘specific kind of fert.’,
THEN my tomato plants will grow
taller.
None… BUT she really should REPEAT the exp.

8. ISN page 19, Scenario #2 IV = Color of rice (CAUSE) DV =
Constants =
Control =
Hypothesis =
Improvement =
Color of rice (CAUSE)
People choosing (action) certain color rice (EFFECT)
same amt. rice, identical bowls
None
IF I use a ‘specific color’ of rice (CAUSE)
THEN more people will choose it. (EFFECT)
Needs a control group  white rice for comparison

9. ISN page 19, Scenario #3 IV = Type of air pellets (CAUSE) DV =
Constants =
Control =
Hypothesis =
Improvement =
Type of air pellets (CAUSE)
Accuracy (action) of pellet (EFFECT)
same type of rifle, shot same # of times, target same distance away
Standard Brand X Pellets
IF I use a ‘specific type’ of pellets (CAUSE)
THEN there will be an improvement in accuracy (EFFECT)
NONE

10. ISN page 19, Scenario #4 IV = Studying more (CAUSE) DV = Constants =
Control =
Hypothesis =
Improvement =
Studying more (CAUSE)
10% increase (action) in grade (EFFECT)
None….
Previous grade
IF I study more (CAUSE)
THEN my biology grade will
increase by 10% (EFFECT)
Do not study sporadically, don’t use different study methods

11. Stop Think And Review Hypothesis IV DV Control Group
Experimental Group
Constants

12. Stop Think And Reflect Did we reach our goal?
Our goal today was for you to recognize parts of an experiment….
Did you reach that goal? How do you know you reached the goal?
What are you going to do if you did not reach that goal?? 12

13. HOMEWORK FIRST MINI-SUM TOMORROW!!!!! Finish pages in your ISN:
KIM Chart, page 11
Hypothesis
Parts of Experiment
HOMEWORK
Be the change you wish to see in the world 13 13