Saturday, August 7, 2010

Lab Safety Contract

Science is a hands-on laboratory class. Students will be doing many laboratory activities that may require the use of chemicals, laboratory equipment, and other items which, if used incorrectly, can be hazardous. Safety in the science classroom is the number 1 priority for students, teachers, and parents. To ensure a safe science classroom, a list of rules has been developed and provided to you in this student safety contract. These rules must be followed at all times. The student and a parent must sign their copy. Please read the entire contract before you sign. Students will not be allowed to perform experiments until all their contracts are signed and given to the teacher.
GENERAL GUIDELINES
1. Conduct yourself in a responsible manner at all times in the classroom.
2. Follow all written and verbal instructions carefully. If you do not understand a direction or part of a procedure, ASK YOUR TEACHER BEFORE PROCEEDING WITH THE ACTIVITY.

3. When first entering a science room, do not touch any equipment, chemicals, or other materials in the laboratory area until you are instructed to do so.
4. Perform only those experiments authorized by your teacher. Carefully follow all instructions, both written and oral. Unauthorized experiments are not allowed.

5. Be prepared for your work in the laboratory. Read all procedures thoroughly before entering the laboratory. Never fool around in the laboratory. Horseplay, practical jokes, and pranks are dangerous and prohibited.

6. Be alert and proceed with caution at all times in the laboratory. Notify the teacher immediately of any unsafe conditions you observe.
7. Keep hands away from face, eyes, mouth, and body while using chemicals or lab equipment. Wash your hands with soap and water after performing all experiments.
8. Experiments must be personally monitored at all times. Do not wander around the room, distract other students, startle other students or interfere with the laboratory experiments of others.




CLOTHING

9. Any time chemicals, heat, or glassware are used, students will wear safety goggles. NO EXCEPTIONS TO THIS RULE!
10. Dress properly during a laboratory activity. Long hair, dangling jewelry, and loose or baggy clothing are a hazard in the laboratory. Long hair must be tied back, and dangling jewelry and baggy clothing must be secured. Shoes must completely cover the foot. No sandals allowed on chemical lab days.
ACCIDENTS AND INJURIES
11. Report any accident (spill, breakage, etc.) or injury (cut, burn, etc.) to the teacher immediately, no matter how trivial it seems. Do not panic.
HANDLING CHEMICALS

12. Do not taste, or smell any chemicals.
13. Do not return unused chemicals to their original container unless specifically instructed by your teacher.
14. Never remove chemicals or other materials from the laboratory area.
QUESTIONS (answers are confidential)
15. Do you wear contact lenses? Yes_______ No______
16. Are you color blind? Yes _______ No______
17. Do you have allergies? Yes _______ No ______
If so, please list specific allergies _____________________________________________________________________________

_____________________________________________________________________________
AGREEMENT
I, __________________________________ (student's name) have read and agree to follow all of the safety rules set forth in this contract. I am aware that any violation of this safety contract that results in unsafe conduct in the laboratory or misbehavior on my part, may result in my being removed from the lab classroom, detention, receiving a failing grade, and/or further disciplinary action.

Student signature Date
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Lab Journal Rubric

LAB REPORT RUBRIC

Note: Points will be deducted for punctuation & capitalization.

Note: You must use black or blue pen. Mark only one line through errors…do not scribble anything out.


Category


Proficient Scoring Criteria

Points

Student #1 Evaluator:

Student #2 Evaluator:

Teacher Notes:

General Info.


Title, Name, Group members, Period, Start date, End date.

5




Problem


Purpose/Objective of the experiment is written in a question format.

5




Background

Explained prior knowledge on topic in paragraph form.
List Control Variables, Independent/Manipulated Variable, Dependent/Responding Variable, Control Group, Experimental Group, & Control Variables
5




Hypothesis

“If…Then…” Statement of
what you think will happen.

5




Materials


List of supplies needed for the experiment in bullet format.

5




Procedures

List of detailed & clear step-by-step

written procedures…must be numbered!

15




Data Table 10, Graph 10, Analysis 10

Easy to read data table(s) with title.
Easy to read graph(s) with title.
The analysis is a word explanation of the graph(s).
30




Conclusion

Restate hypothesis.
Was it accepted or rejected?
Explain how results of experiment relate to hypothesis.
Use data to support explanation.
Any human error?
How could you increase the validity of this experiment?
List at least 2 questions! (Don’t answer them…just ponder!)
20




Initial Score

ADD ALL ABOVE POINTS TOGETHER
=90




Lab Participation

To be graded by the teacher.

10




Total Score



100





You will lose points for the following: improper spacing, not using proper punctuation and capitalization, scribbling instead of using one line to cross out a mistake, & not using pen (you must use pen NOT pencil).

Lab Safety Rules

Safety in the Chemistry Laboratory


Working in the chemistry laboratory is an interesting and rewarding experience. During your labs, you will be actively involved from beginning to end – from setting some change in motion to drawing some conclusions. In the laboratory, you will be working with equipment and materials that can cause injury if they are not handled properly. However, the laboratory is a safe place to work if you are careful. Accidents do not just happen they are caused – by carelessness, haste, disregard of safety rules and practices. Safety rules to be followed in the laboratory are listed below. Before beginning any lab work, read the rules carefully, learn them, and follow them faithfully.



General


Be prepared to work when you arrive at the laboratory. If instructed to do so by your teacher, familiarize yourself with the lab procedures before beginning the lab.
Perform only those lab activities assigned by your teacher. Never do anything in the laboratory that is not called for in the laboratory procedures or by your teacher.
Work areas should be kept clean and tidy at all times. Only lab manuals and notebooks should be brought to the work area. Other books, purses, brief cases, etc. should be left at a designated area.
Clothing should be appropriate for working in the lab. Jackets, ties, and other loose garments should be removed. Long sleeves should be rolled up or secured in some manner.
Long Hair should be tied back, especially in the vicinity of open flame.
Jewelry that might present a safety hazard, such as dangling necklaces, chains, medallions, or bracelets should not be worn in the lab.
Follow all instructions, both written and oral, carefully.
Safety goggles and lab aprons should be worn at all times.
Set up apparatus as described in the lab instructions or by your teacher. Never use makeshift arrangements.
Always use the prescribed instrument (tongs, test tube holder, forceps, etc. for handling apparatus or equipment.
Keep all combustible material away from open flame.
Never touch or taste any substance in the lab unless specifically instructed to do so by your teacher.
Never put your face near the mouth of a container that is holding chemicals.
When testing for odors, use a wafting motion to direct the odors to your nose.
Any activity involving poisonous vapors should be conducted in the fume hood.
Dispose of waste materials as instructed by your teacher.
Clean up all spills immediately.
Clean and wipe dry all work surfaces at the end of class. Wash your hands thoroughly.
Know the location of emergency equipment (first aid kit, fire extinguisher, fire blanket, shower, eye wash, etc.) and how to use them.
Report all accidents to the teacher immediately.


Handling Chemicals


Read and double check labels on reagent bottles before removing any reagent. Take only as much reagent as you need.
Do not return unused reagent to stock bottles.
When transferring chemical reagents from one container to another, hold the containers out away from your body.
When mixing an acid and water, always add the acid to the water.
Avoid touching chemicals with your hands. If chemicals do come in contact with your hands, wash them immediately.


Handling Glassware


Glass tubing, especially long pieces, should be carried in a vertical position to minimize the likelihood of breakage and to avoid stabbing anyone.
Never handle broken glass with your bare hands. Use a brush and dustpan to clean up broken glass. Dispose of the glass as directed by your teacher.
Always lubricate glassware (tubing, thistle tubes, thermometers, etc.) with water or glycerin before attempting to insert it in a stopper.
Never apply force when inserting or removing glassware from a topper. Use a twisting motion. If a piece of glassware becomes “frozen” in a stopper, take it to your teacher.
Do not place hot glassware directly on the lab table. Always use an insulating pad of some sort.
Allow plenty of time for hot glass to cool before touching it. Hot glass can cause painful burns. (Remember: Hot glass looks cool.)

Classroom Rules

Classroom Rules
1. No electric devices! This means cell phones, IPods, DSD and hair irons.
I do not even want to see ear buds or head sets. If your cell phone is picked up, it will be taken to the front office where you will have to pay $15 to have it returned.

2. No food or drink. Classroom sinks are being clogged with candy wrappers and trash is being left in the sinks without you taking the responsibility to dispose of it.

Attendance Policy
1. If you are tardy, you must sign the Tardy Log. Here’s a breakdown of weekly tardy consequences:
a. 1 tardy = 15 lunch detention
b. 2 tardies = 30 minute lunch detention
c. 3 tardies = 1 hr classroom service
If you do not show up for detention, then you will receive an infraction.


Student Commitment
I commit to following the classroom rules.
I commit to being on time.
I commit to paying attention in class.
I commit to turning in my assignments when they are due.
I commit to respecting my teacher and classmates.

Welcome Back to School!

Welcome back students! We are in for another exciting and challenging year with some changes that enhance your learning. South Hills HS is on A/B block schedule. This will benefit you in many ways for most importantly enhancing instructional time.

Basically, you will have periods 1-8, 1-4 on A and 5-8 on B days.

Don't worry, schedules will be posted in the classroom and I can remind you which day it is should you forget.

Chemistry

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