Presentation on theme: "The smallest shark is the tsuranagakobitozame :"— Presentation transcript:
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 2010Objective: Know the parts of an experimentAgenda:Brief notes on parts of experimentWorksheet of parts of and experimentHomework: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 Variablecontrolled by experimenterDependent Variablean action; a verb; it changesCAUSEEFFECT…Type of waterGrowth of plant
4 Experimental Set up: CONTROL GROUP: EXPERIMENTAL GROUP: NO changes- All conditions kept the same – cont. as usualBaseline for comparisonNo action takenEXPERIMENTAL GROUP:Change made – called the test group- kept the same except for the ONE thing being testedAction takenChange ONLY the water to ‘Martha Stewart’ brandCont. 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 plantSAME size of bowlEQUAL amounts of dirtSAME time of watering plantsSAME kind of….
6 Identifying Parts of an Experiment YOUR JOB:Identifying Parts of an Experiment15-20 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 water4th pot with no fertilizer – she cont. growing it as usualIF I use a ‘specific kind of fert.’,THEN my tomato plants will growtaller.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 bowlsNoneIF 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 awayStandard Brand X PelletsIF 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 gradeIF I study more (CAUSE)THEN my biology grade willincrease by 10% (EFFECT)Do not study sporadically, don’t use different study methods
11 Stop Think And Review Hypothesis IV DV Control Group Experimental GroupConstants
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 11HypothesisParts of ExperimentHOMEWORKBe the change you wish to see in the world1313