Catalyst – Last Day of January ‘12PLEASE TAKE YOUR QUIZ 1.1 OUT IF YOU

HAVE IT!

GRAB A CALCULATOR!

1. What are the characteristics of a good procedure?

2. What is the difference between accuracy and precision?

3. Convert 15 hectograms to grams.

Today’s Agenda

CatalystMore Dimensional AnalysisReview for the Unit Test Numero Uno and WORK TIME…GET IT IN!

Test Taker Song! GET IT KRUNK!Exit Question and Progress Reports

Today’s Objectives

SWBAT master dimensional analysis.

SWBAT get ready to DOMINATE the Unit 1 Test!

Front DoorProjector2nd Period

Group 3

Jasmine G., Blake, Ly’Janae, William

Group 2

Jasmine B., Jonathan, Nila, Jevon

Group 1

Kevin, Deanna, Marlonika, Tra

Group 6

Luke, Veronica, Jorrance, Sherrell

Group 4

Andrew, Russell, Arielle, Tirelle

Group 9 Group 8

Chris, Irvondra, Bryana C.

Group 7

Jenna, Lindsay, Destin

Group 5

Jason, Banika, Antoine, Jenna B.

Front DoorProjector3rd Period

Group 3

Paul, Nikki, Megan, Ryan

Group 2

Raymond, Lashona, Jonathan, Jaymie

Group 1

Destiny, Kevin, Terrell, Allie

Group 6

Temika, Amber, Joey, Demirr

Group 4

Raven, Mecalla, Daniel, Cory

Group 9

Terrell, Briana M., Simona

Group 8

Josh, Kayla, Layla

Group 7

Jasmine, Nick, Ashleigh

Group 5

Ronda, Lauren, Randy, Joie

Front DoorProjector5th Period

Group 3

Torien, Nasheema, Jesus, Sharika

Group 2

Champagne, Angel, Jornell, Ovile

Group 1

Titus, Antoineka, Myderika, Boris

Group 6

Roxy, Chalsey, Brannesha, Katherine

Group 4

Keiara, Myjiel (lab table), Kevin, Blake

Group 9

Aerial, Ashley, Antione

Group 8

LaNell, Chyna, Corteiona

Group 7

Alex, Molly, Alesia

Group 5

Jerome, Larriane, Taylor, Myra

DON’TFORGETSNOOP’SMESSAGE!

Working on the Railroad

Step 1: What to what?

Step 2: Write conversion factor(s)

Step 3: Train tracks

Length - Meters

Creepy Math Guy found a ruler! SWEEET!

Always remember…

2-Step Key Point: In two step problems, always convert to the unit without a prefix first. Mass: grams Distance: meters Volume: liters

2-Step Practice…

Chris Paul has a mass of 79.4 kg, convert this to mg. kg g mg 1 kg = 1000 g 1 g = 1000 mg

Practice

There are 1135 decaliters (daL) in a pool. Convert to centiliters (cL). daL L cL 10 L = 1 daL 100 cL = 1 L

Practice!

The average human eye blink is 300 milliseconds. Convert this to hectoseconds. ms s hs 1 s = 1 ms 1 hs = 100 s

1 or 2 Steps?

How many deciliters are in a liter?

1 or 2 Steps?

How many decigrams are in a kilogram?

1 or 2 Steps?

How many micrometers are in a megameter?

1 or 2 Steps?

How many milligrams are in a gram?

Graphing Review!

What question was the scientist most likely trying to answer with the graph?

What is a conclusion that can be made from the graph?

Describe a flaw in the graph and how you would fix it OR describe a follow-up experiment to learn more about the topic

Write a hypothesis to answer the following question…

Science Skillz

A good experimental question asks why or how something happens.

A good hypothesis is an educated, testable guess that answers a question.

Scientists perform experiments in order to test hypotheses.

Variables

Independent Variable: variable that you change during an experiment; causes the change you are measuring; aka manipulated variable (acts independently)

Dependent Variable: variable that is observed; changes in response to change in IV; aka responding variable (depends on other things)

Constants

Everything but the independent and dependent variable must be kept constant. Constants: other experimental factors(or variables) that stay the same throughout experiment

If many different things change at once, we don’t know what causes the change!

How to plan a procedure….

Characteristics of a quality procedure…

1. Materials (including safety equipment)

2. Step-by-step instructions3. Each step is numbered4. Specific and clear

Lab Equipment and Safety Methods

Think about what to do to prevent bad

things from happening in the lab!

Don’t forget what to do if something

goes wrong in the lab!

LAB EQUIPMENT!

Accuracy and Precision

Accuracy is how close you are to the correct or accepted value of a measurement.

Precision is how close a series of measurements are to one another.

Scientific Notation

YOU WILL BE

DOMINANTON THE TEST!!!

Scientific Notation

9870000

0.00000987

Scientific Notation

9870000 9.87 x 106

0.00000987 9.87 x 10-6

Scientific Notation

8.1 x 103

9.4 x 10-2

Scientific Notation

8.1 x 103 8100

9.4 x 10-2 0.094

Temperature Conversions

Celsius to Kelvin: Add 273 to the ˚C

Kelvin to Celsius: Subtract 273 from

the K

1. 0 ˚C2. 200 ˚F3. 100 K

Celsius to Fahrenheit: Multiply ˚C by 9 Divide answer by 5 Add 32 to answer

Fahrenheit to Celsius: Subtract 32 from ˚F Multiple answer by 5 Divide answer by 9

Exit Question

1. What are you going to do to make sure you DOMINATE the Unit 1 Test tomorrow???

HOMEWORK:Study for TEST

tomorrow!

Catalyst – 2, 410, 2012

Please take out any study materials that you may have. You

will get study time after the Catalyst.

Please get a calculator as well.

1.What is a conversion factor? What does it look like? Give an example.

Today’s Agenda

CatalystStudy TimeUnit 1 Test = DOMINATIONNo Exit Question Today

Today’s Objectives

SWBAT DOMINATE THE UNIT 1 TEST!