Warm Up 8-13-14 Agenda Homework Direction: Copy down the questions into your notebook and provide answers after reading the syllabus Based on the syllabus how many percent is classwork and homework worth? What format do you use to take notes in class? Can you turn in late work? If you’re tardy, how many minutes do you have to stay after the bell? Agenda Syllabus walkthrough Emergency contact info Lab safety walkthrough Notes Scientific Method WS SpongeBob Homework Aug 15 – Spongbob Scientific method worksheet Aug 15 – Signed syllabus due

Collab/HR Schedule for 8-13-14 9:00 -10:22 Period 1 10:22 -10:30 Passing 10:30 -11:08 Homeroom 11:08-11:48 1st Lunch 11:16-12:37 Period 3 12:37-1:17 2nd Lunch 1:17-1:25 Passing 1:25-2:46 Period 5

Class Syllabus Please follow along: Advices Grading scale Quizzes and Tests Classwork Homework Late assignment policy -Extra credit Academic dishonesty Rules & Consequences Class website Parents signature contact info. Due date -Pet peeve

Chemical Hazard Label SDS Safety Quiz LABORATORY SAFETY Chemical Hazard Label SDS Safety Quiz Safety rap Video http://www.youtube.com/watch?v=xJG0ir9nDtc safety rap Safety rap Video http://www.youtube.com/watch?v=xJG0ir9nDtc

NFPA CHEMICAL HAZARD LABEL FLAMMABILITY HEALTH REACTIVITY (STABILITY) SPECIAL

NFPA CHEMICAL HAZARD LABEL Least Serious 4 Most 4 2 3 4 Flammable vapor which burns readily Substance is stable

NFPA CHEMICAL HAZARD LABEL Burns readily. Diborane May detonate with heat or ignition. Severe health risk. Avoid water.

NFPA CHEMICAL HAZARD LABEL Complete Label for Phosphine

Write down What each symbol stands for EX = explosive atmosphere ! = warning sign

SDS Safety Data Sheet On file for all purchased chemicals. Includes all information shown on a chemical label and more. Different formats are used by different chemical companies.

SDS

Notebook Format You may write on the back Start with a new page each Date Warm up questions and answers 1. 2. 3. Minimum 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 each day

Chapter 1 Steps of the Scientific Method Identify the problem Form a hypothesis Test hypothesis by performing experiments Analyze data Draw conclusions

The Experiment Independent variable: the item being tested in the experiment (What YOU change) 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. (The normal group)

After the experiment…. Law: something that has been proven to be true -Gravity -Motion Theory: something that is likely to be true, but has not been proven Kinesio Tape Work on Spongebob scientific method worksheet with a partner in class

Homework Signed syllabus SpongeBob worksheet

Scientific Method Investigation Are there specific ratios that exist between the lengths of certain parts of the body and other parts? Create a hypothesis (a statement that answer the question above and can be tested) Make a hypothesis

Hypothesis The length of your arm span is the same as your height Example 1:1 160cm/160cm = 1:1

Table 1. Data Collection Subject 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 Analysis Subject 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 # 2 name # 3 name

Conclusions What is the ratio of your height to your arms span? Is your arm span the same as your height? How about your group members? What is the ratio of your height to your forearm? What is the ratio of your hand span to your index finger? If the ratio is 1:1 what does it mean? Compare yourself with your partners, does everyone have the same ratio? Who does and who doesn’t? Does your data support your hypothesis?