Catalyst – August 52, 2009

What are the FOUR characteristics of a good procedure?

UNIT 1 QUIZ RESCHEDULED TO THURSDAY!!!!

Front Door

Projector2nd Period

Group 3

Katty,Isaiah,

Nicolette, Robin

Group 2

Darren, Whitnie,

Isaac

Group 1

Neron, Tre, Denny,

Chelsea J.

Group 6

Jared, Brittanee, T’Keyah, Reshad

Group 4

Keith, Jessica, Arethia, Sidne

Group 9Group 8 Group 7

Kerrie, Jenny, Joseph, Corian

Group 5

Dorian, Elesha,

Chelsea C., Chevalius

Front Door

Projector4th Period

Group 3

Tashica, James,

Kennesha, Seandell

Group 2

Chelsea, Duan,

Victoria, Shant’a

Group 1

Brittanny V., Brandon, Katelynn, Queirra

Group 6

Darionne, Jordan J., Dajaelle,

Kathy

Group 5

Frank, Amanda,

Kevin, Brittany P.

Group 4

Phillip, Jordan T., Keyera,

Fatina

Group 9

Kawanna, Davida, Cole

Group 8

Brett, Stephanie,

Tia, De’Jonnaie

Group 7

Antrashion, Jayde, Lee

Honors Catalyst – August 52, 2009 What are the FOUR characteristics

of a good procedure? What should our GLE mastery goal

be? (We still haven’t decided!)

UNIT 1 QUIZ RESCHEDULED TO THURSDAY!!!!

Front DoorProjector3rd Period

Group 3

Jessie, Jeremy, Devone, Tonisha

Group 2

Emanuel, Jalen,

Antoinette, James

Group 1

Willie, Justin, Thien,

Michael

Group 6Group 5

Jonas, Sean, Bridget, Christan

Group 4

William, Jonathon,

Maya, David

Group 9Group 8 Group 7

Today’s Agenda

Catalyst Finish procedure for Mystery Goo (5

min) How to work in Ms. Stroh’s lab Make Mystery Goo! What is an independent and

dependent variable? Foldable Time! Progress Reports Exit Question

Today’s Objectives

SWBAT plan a step-by-step procedure for making Mystery Goo.

SWBAT identify independent and dependent variables in a controlled experiment.

Available Materials

Corn starch Water Graduated

cylinder Beaker Cup

Spatula Measuring cup Gloves Apron Goggles

Can you think of anything else you might need?

Mystery goo! (30 minutes)

Gather materials for your experiment.

Talk over the procedure with your group before you begin.

Clean up Beakers must be washed thoroughly.

Place them upside down on the paper towels.

Wipe down your desks and floors.

Mystery Goo Hypotheses

Let’s talk about the goo some more.

What would have happened if we added more water? How would you test it?

What would have happened if we added more corn starch? How would you test it?

Experimentation

Key Point #1: A proper experiment always has an

independent variable, dependent variable, and control group.

Scientists will change one thing and measure something else.If Mr. Jhaveri wears his basketball shoes, then he will score more points in a game.

Variables

Independent Variable: The thing that I change Basketball Shoes

Dependent variable: The thing that is measured Points

*Remember variables are always nouns!!

Good experiments…

ONLY CHANGE 1 THING!! You must keep everything else constant,

or your data may not be valid! Control Group: The group without the

independent variable. What was the control group in the

basketball experiment?

IMPORTANT!!!

Practice

Do older microwaves give off more radiation? What is the independent variable?

IV =

DV =

Microwave Age

Radiation

Practice

Are there more love bugs in the summer or the winter months? What is the dependent variable?

IV =

DV =

Season

Amount of love bugs

Practice

Students of different ages were given the same puzzle to assemble. The puzzle assembly time was measured.

IV =

DV =

Age

Puzzle Assembly Time

If there are more students, then there will be more school

buses.

IV =

DV =

Amount of students

Number of school buses

If the cost of beignets increases, then fewer will be sold.

What depends on what?

IV =

DV =

Cost of Beignets

Amount of Beignets sold

IV = Number of free agents

DV = Games Won

If the Saints sign more free agents, then they will win more games.

Foldables!

First flap: Real-life scenario in hypothesis form

Second Flap: Define and identify independent variable

Third Flap: Define and identify dependent variable

Fourth Flap: Define and identify control group

Foldables!

First flap: If I use more minutes, then my cell phone bill will increase.

Second Flap: DEFN, IV: number of minutes I use

Third Flap: DEFN, DV: amount of my cell phone bill

Fourth Flap: DEFN, Control group: number of minutes I usually use

Exit Question

Identify the independent variable, dependent variable, and control group in the following scenario.

Dr. Ayaad believes that eating artichokes can decrease cholesterol. Dr. Ayaad recruited two sets of patients of equal age and health and she gave one group a normal diet and another an artichoke-filled diet. She then measured the patient’s cholesterol 2 weeks later.