Safety in Physical Science Answer Key
The Most Important Rule:
If an accident happens or you do not understand something, ask the teacher for help!
Fire Extinguisher: Our fire extinguisher puts out _liquids___ and _electrical__types of fires.
How to use the fire extinguishers (The three P’s)
1. ____Point______- the nozzle at the fire
2. _____Pull _____- the safety pin
3. ____ Press______- the handle
Fire Blanket: If someone is on fire, he/she needs to _stop___, _drop__, and roll.
The blanket is used to ___smother______ the flames.
___Never__ ___wrap___ a person who is on fire in the blanket because it keeps the
heat in and the person will be more seriously burned.
When the fire is out, wrap the person in the blanket to keep him _warm_____.
Fire Alarm Activator: 1. Pull the _______handle______________________.
2. ______Break____________________ the glass rod.
Eye-wash Station: 1. Hold eye ___open________.
2. Use the eye solution to ______rinse_______ out the eye.
3. Continue washing out the eye for 10-20 __minutes______.
Tell the Teacher if you : 1. Do not understand the ____
2. Spill ___
directions_____________________.
anything_______________________________.
3. Any ____accident_____________ occurs (no matter how small)
4. If anything gets ____broken__________________________.
Broken Items: I should tell _the
teacher___ before I do anything.
The __teacher_______ will clean up all broken or spilled items.
Chemicals: Never put unused chemicals back into their ___original___ __container___ because
the original container might become contaminated with something mixed in the unused chemicals.
Before participating in lab activities, what must be done with each of the following items?
1) Long hair: ___
Tie it back._____________
Wear closed toed shoes (sneakers). ______________
2) Sandals:___
Take it off. __________________
3) Dangling Jewlery:___
4) Baggy Clothes:___
Take off or roll up. ________
5) Contact Lenses: ___
If teacher tells you, remove them before lab.______
Practicing Lab Safety – Read p. 14 in the textbook.
Handbook B Review
Determine which safety rule you should follow when you see each symbol shown below.
Write the rules beside the correct symbols.
1.
Heat Source
2.
_______________________________
3.
Poisonous substances
____________________________________
4.
_______________________________
5.
Sharp objects
Be careful.
________________________________
Glass might break
Dispose of all materials
safely.
_____________________________________
6.
Electrical Equipment
______________________________________
Skill Challenge
Skills: applying, identifying
Figure out which safety rules the students break in the following scenario. Write your
answers in the spaces provided.
Maria and Jack are conducting an experiment in which they used acids and bases. Before putting
on his safety goggles, Jack measures out a quantity of an acid in one beaker and a quantity of a
base in another beaker. Maria smells the contents of the two beakers and notices that a strand of
her long hair has fallen into one of the beakers. She dries her hair on a paper towel. Next, the two
students mix the contents of the beakers together without reading the instructions. When the
chemicals start to react, Jack and Maria pour the contents of the beaker down the sink drain and
return to their desks.
Safety Rules Not Followed
1.
Wear safety goggles especially when working with chemicals.
2.
Never smell anything directly.
3.
Never mix chemicals without directions from the teacher.
4.
Tie up hair. Roll up sleeves and take off baggy sweatshirts.
5.
Dispose of all materials properly.