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.

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

Independent Variable

controlled by experimenter

Dependent Variable

an action; a verb; it changes

CAUSE EFFECT…

Type of water

Growth of plant

Experimental Variables:

CONTROL 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

Experimental Set up:

Cont. as normal with tap water

Change ONLY the water to ‘Martha Stewart’ brand

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….

.

YOUR JOB:YOUR JOB:

Identifying Parts of an Identifying Parts of an ExperimentExperiment

15-20 minutes 1. Work w/ partner to complete, Identifying Parts of Exp Stay with group!

5 minutes 2. Review

1. IV =2. DV = 3. Constants = 4. Control =

5. Hypothesis =

6. 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

growtaller.

None… BUT she really should REPEAT the exp.

1. IV =2. DV =

3. Constants =

4. Control =

5. Hypothesis =

6. 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

1. IV =2. DV =3. Constants =

4. Control =

5. Hypothesis =

6. Improvement =

Type of air pellets (CAUSE)

Accuracy (action) of pellet (EFFECT)

same type of rifle, shot same # of times, target same distance awayStandard Brand X Pellets

IF I use a ‘specific type’ of pellets (CAUSE)

THEN there will be an improvement in accuracy (EFFECT)NONE

1. IV =2. DV =3. Constants =

4. Control =

5. Hypothesis =

6. Improvement =

Studying more (CAUSE)

10% increase (action) in grade (EFFECT)

None….

Previous grade

IF I study more (CAUSE) THEN my biology grade willincrease by 10% (EFFECT)

Do not study sporadically, don’t use different study methods

1. Hypothesis2. IV3. DV4. Control Group5. Experimental Group6. Constants

SStop TThink AAnd

RReview

Did we reach our goal?Did we reach our goal? Our goal today was for you to recognize recognize

parts of an experimentparts of an experiment….….

1. Did you reach that goal? How do you know you reached the goal?

2. What are you going to do if you did not reach that goal??

1.FIRST MINI-SUM TOMORROW!!!!!

2.Finish pages in your ISN:1. KIM Chart, page 11

2. Hypothesis3.Parts of Experiment

HO

MEW

OR

HO

MEW

OR

KK Be the change you wish to see in the world