Warm UpWarm Up 8-13-158-13-15Direction: Copy the questions and answerCopy the questions and answer

1.Based on the syllabus how many percent is classwork and homework worth?2.What format do you use to take notes in class?3.Can you turn in late work?4.If you’re tardy, how many minutes do you have to stay after the bell?

AgendaSyllabus walkthroughEmergency contact infoLab safety walkthroughOnline homework walkthroughNotes Scientific Method

HomeworkAug 17 – Glassware Poster dueAug 17 – Signed syllabus dueAug 19 – Safety Quiz

Class SyllabusClass SyllabusPlease follow along:Please follow along:AdvicesAdvicesGrading scaleGrading scaleQuizzes and TestsQuizzes and TestsClassworkClassworkHomework – Online Course #D205Homework – Online Course #D205Late assignment policyLate assignment policy

-Extra credit-Extra creditAcademic dishonestyAcademic dishonestyRules & Consequences Rules & Consequences Class websiteClass website - Pet peeve

Safety rap Videohttp://www.youtube.com/watch?v=xJG0ir9nDtc

LABORATORY LABORATORY SAFETYSAFETYRULESRULES

• Chemical Hazard LabelChemical Hazard Label

• SDSSDS

• Safety QuizSafety Quiz

THIS IS CHEMISTRY!

NFPA CHEMICAL HAZARD LABELNFPA CHEMICAL HAZARD LABEL

HEALTH

SPECIAL

REACTIVITY(STABILITY)

FLAMMABILITY

NFPA CHEMICAL HAZARD LABELNFPA CHEMICAL HAZARD LABEL

0

LeastSerious

4

MostSerious

4

0

Flammable vapor which burns readily

Substance is stable

Avoid water.

NFPA CHEMICAL HAZARD LABELNFPA CHEMICAL HAZARD LABEL

May detonate

with heat or ignition.

Severe health risk.

Burns readily.Diborane

NFPA CHEMICAL HAZARD LABELNFPA CHEMICAL HAZARD LABEL

Complete Label for Phosphine

Write down

What each symbol

stands for

C. Johannesson

SDS = Safety Data SheetSDS = Safety Data Sheet

Notebook FormatNotebook Format

Date

Warm up questions and answers1.2.3.

Main Topics:

1 summary per day. 3 sentences summarizing main ideas from today’s notes and explain what they are

- Main ideas- Questions related to the notes

- Notes from lecture- Explanations- Diagrams- Pictures

You may write on the back

Start with a new page eachday

Identify the problemIdentify the problem Form a hypothesisForm a hypothesis Test hypothesis by Test hypothesis by

performing experimentsperforming experiments Analyze dataAnalyze data Draw conclusionsDraw conclusions

Unit 1Unit 1Steps of the Scientific MethodSteps of the Scientific Method

The ExperimentThe Experiment

Independent variable: the item being tested in the experiment (What YOU change/manipulate)

Dependent variable: the item being measured in an experiment (DEPENDS on the independent variable)

Control group: The part of the experiment that is left unchanged (not required in some experiments)

After the experiment….After the experiment…. Law:Law: generalizes a body of

observations. Explain things, but they do not describe them. Always true.

Law of GravityLaw of Gravity Theory:Theory: summarizes a group of

hypotheses. It is valid as long as there is no evidence to dispute it (theories can be disproven)

Kinesio Tape

Homework AssignmentHomework Assignment Make a poster of lab glassware due on Make a poster of lab glassware due on

Monday, Aug 17Monday, Aug 17thth

Google lab glassware, select 6 objects, Google lab glassware, select 6 objects, hand drawn,hand drawn, coloredcolored and and labellabel on print on print paperpaper

Some example laboratory objects:Some example laboratory objects:-Test tube rack-Test tube rack -Beakers-Beakers

-Test tube holder-Test tube holder -Bunsen burner-Bunsen burner

-Test tubes-Test tubes -Hot plate-Hot plate

-Pipette-Pipette -Well plate-Well plate

-Graduated cylinder-Graduated cylinder -Thermometer-Thermometer

-Erlenmeyer flask-Erlenmeyer flask -Ring stand-Ring stand

Online HWOnline HW

Everyone must sign up for an accountEveryone must sign up for an account Record your login name and password Record your login name and password

for the Utexas website then turn it infor the Utexas website then turn it in Sign in and request to be in my class Sign in and request to be in my class

Course # D205Course # D205 11stst Extra credit assignment is up, due Extra credit assignment is up, due

next Friday (8-21-15) before 9PMnext Friday (8-21-15) before 9PM

Table 1. Data CollectionTable 1. Data CollectionSubject

Index finger length

Hand span (pinky to thumb)

Forearm (Wrist to elbow)

Arm length (shoulder to fingers

Arms span

Height

Foot length

Self

Partner #1

name

Partner #2

name

Partner #3

name

Table 2. Data AnalysisTable 2. Data AnalysisSubject

Ratio height to forearm

Ratio height to arms span

Ratio hand span to index finger

Ratio arm length to index finger

Ratio arms span to forearm

Ratio of your hypothesis

Self

Partner # 1

name

Partner# 2

name

Partner# 3

name

Conclusions (only answers)Conclusions (only answers)1.1. What is the ratio of your height to your arms span? What is the ratio of your height to your arms span?

2.2. Is your arm span the same as your height? How Is your arm span the same as your height? How about your group members?about your group members?

3.3. What is the ratio of your height to your forearm?What is the ratio of your height to your forearm?

4.4. What is the ratio of your hand span to your index What is the ratio of your hand span to your index finger?finger?

5.5. If the ratio is 2:1 what does it mean?If the ratio is 2:1 what does it mean?

6.6. Compare yourself with your partners, does everyone Compare yourself with your partners, does everyone have the same ratio? Who does and who doesn’t?have the same ratio? Who does and who doesn’t?

7.7. Does your data support your hypothesis?Does your data support your hypothesis?