1.1 Safety Symbols & About Science

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08 -27-2015
 1) Name one famous physicist.
Albert Eienstein, Stephen Hawking, Isaac
Newton, Michael Faraday, Archimedes
**PLEASE Copy warm-up Q&A on
paper.
Agenda
1) Warm-Up (5 min)
2) Collect (2) Contracts after bell
3) Assignment Chart (5mins)
4) Safety Symbols Review (15 min)
5) “About Science” notes (15 min)
6) Reading assignment Ch. 1-2 (30 min)
General Safety
Breakage
Heating
Heat Resistant
Gloves
Open Flames
Electric Shock
Physical
Safety
Unit
1:
“About Science”
I.
LIFE SCIENCES:
II.
PHYSICAL SCIENCES:

Biology
Zoology
Botany

Geology
Astronomy
Chemistry
Physics





 Physics
(foundation for…)
 Chemistry (foundation for…)
 Biology
Mathematics – “universal” language
When information is expressed
mathematically, it is easier to
prove or disprove correctness
1.
A red car is driving slowly; a blue car is
driving quickly
(slowly or quickly relative to what?)
VS
2. A car is driving at 35 mph, and a blue car is
driving at 110 mph
(mathematical terms – more clear)
Methods used in science in gaining,
organizing and applying knowledge


Problem – what question do you want answered?
Hypothesis – what do you THINK the answer might
be? (an educated guess)
The hypothesis must be TESTABLE (scientists must be
able to experiment to test the hypothesis)
 Atoms
are the smallest particles of matter
– TESTABLE
 VS
 Albert Einstein is the greatest physicist of
all time – NOT TESTABLE
 FACT
– a close agreement by competent
observers of a series of observations of the
same phenomenon
(EX: water freezes at 0 degrees Celsius)
THEORY – a synthesis of a large body
of information that encompasses welltested and verified hypotheses about
certain aspects of the natural world
 Theories are based on facts.
•

(EX: Theory of Relativity, Theory of
Evolution)
 LAWS
or PRINCIPLES – a general
hypothesis or statement about the
relationship of natural quantities that
has been tested over and over again
and has not been contradicted
(EX: Newton’s Laws of Motion)
 Prediction
– what will happen if your
hypothesis is correct?
 Experiment – test your hypothesis
 Results – visually show what you learned
in your experiment (usually charts and
graphs)
 Conclusion – was your hypothesis
correct? What did you learn from the
experiment?
 SCIENCE
deals with theoretical
questions;
 It is a “way of knowing”
 TECHNOLOGY deals with practical
problems; it is a “way of doing”
 What do you think - Is technology
good or bad?
 All
are pathways to search for order and
meaning
 SCIENCE investigates natural phenomenon
 ART is the creation of objects or events that
stimulate the senses
 RELIGION is the belief in nature’s purpose
The 3 do not exist alone.
 The blending of all 3 creates diversity among scholars.
Vocab, Formulas, Notes
Labs, Other
DUE TODAY:
• About science notes (KEEP-Binder)
• Reading Assignment Ch. 1-2 (Turn-in)
“Courage is not the absence of fear, but rather the
judgment that something else is more important
than fear.”
-Ambrose Redmoon
DUE NEXT CLASS:
• Study for Quiz!
• Syllabus & Safety Contract
• Binder/dividers/Calculator
• Unit FOLDERS (6)
Safety Objectives:
1. The student must understand the importance of
safety in the laboratory as it relates to itself and those
around them.
2. The student must be able to explain the meaning of
common safety symbols used in specific scientific
fields of study.
3. The student must demonstrate complete knowledge
of laboratory safety rules.
4. The student must be able to demonstrate proper
safety practices in the laboratory setting.
Common to all Sciences
Apron
Proper Disposal
Goggles
Hand Washing
Glassware
General
Safety
Toxic/pois
on
Open
Flames
Heat-resistant
gloves
Electrical
Shock
No Open
Flames
Physical
Safety
Chemistry
Corrosive
Heating
Glassware
Fumes
Biology
Sharp Objects
Plant Safety
Animal Safety
Apron- Wear a lab apron to protect skin and clothing.
Goggles- Wear safety goggles to protect your eyes during labs that use
chemicals, flames or heating, or the possibility of broken glass.
Breakage- handle breakable materials with care. Do not handle
broken glass.
Heat-resistant gloves – Use hand protection when handling hot
materials. Do not touch hot materials with bare hands.
Electrical Shock- Never use electrical equipment around water, or
when equipment or hands are wet. Be sure cords are untangled
and can’t trip anyone. Disconnect equipment when not in use.
No Open Flames- Flammable materials may be present. Make sure
no flames, sparks, or exposed heat sources are present.
Physical Safety- When an experiment involves physical activity, take
precaution not to injure yourself or others. Alert your teacher of
any reason that you should not participate in the activity.
Proper Disposal- Not everything goes in the trash or sink. Follow
teacher’s directions as to where to dispose of all materials.
Hand Washing- Wash hands thoroughly after all lab activities.
General Safety- Follow additional safety precautions given by your
teacher.
Toxic/poison- Do not let poisonous chemicals come in contact
with your skin, clothing or eyes. Do not inhale vapors. Wash
hands when you are done with the activity
Open Flames- You will be working with open flames. Tie back
loose hair and clothing. Follow teacher’s instructions about
lighting and extinguishing flames.
Corrosive- Do not let chemicals come in contact with your skin,
clothing or eyes. Do not inhale vapors. Wash hands when you are
done with the activity
Heating - Use a clamp or tongs to handle hot glassware. Do not
pick up hot glassware with your hands.
Fumes- Work in a well-ventilated area or the fume hood. Do not
inhale directly. Use wafting if you are to test the odor of a vapor.
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