Hi and welcome to earth science lab I'm
Mr. Novi and today we're gonna go over
classroom safety today we're gonna focus
on what to do before lab dress code
proper behavior safe and correct use of
equipment potential injury risk safe
handling of lab material correct ways to
dispose of material waste the dangers of
gas and proper instructions use and type
of emergency equipment and finally
proper instructions for leaving lab
classroom so before lab prior to
entering class you will receive the lab
activity make sure you read the
the lab instructions and guidelines
prior to entering class make sure you
read the safety guidelines and read all
the important steps prior to starting
the lab this will keep you and your
peers safe and on task during the lab
activity if you have any medical issues
handicaps or allergies pertaining to
this lab please privately tell the
teacher and we will create an
alternative lab for you to complete
remember no food or drinks please do not
bring any foods or drinks into the lab
to help stop possibilities of spills if
you have food or drinks please place
them in the front of the classroom and
refrain from eating or drinking during
the lab activity keep personal
belongings off the floor please place
all your belongings not needed for the
lab in front of the classroom make sure
all the aisles are clear for easy and
safe travel around the room to prevent
tripping accidents next we're going to
talk about dress code so dress code is
dressing appropriately appropriately and
it is very important for lab safety
first we're gonna talk about shoes in
lab you need to wear closed toed shoes
these are shoes like sneakers or boots
do not wear flip-flops or sandals this
is important because let's say someone
drops a glass beaker and it breaks
having closed toed shoes will
prevent cuts or other injuries and when we start to work in
the rocks part of the lab you'll want to
protect yourself from the rocks
that can fall on the floor and cause
foot injuries no loose or baggy clothing
either when in lab refrain from
wearing loose or baggy clothing
especially clothing like baggy
sweatshirts or oversize long sleeve
t-shirts this type of clothing can be
hazardous when we start to work with the
a Bunsen burner this clothing
can also be prone to catching materials
and cause them to fall and break which
can also lead to injury for eye
protection in lab when instructed please
wear safety glasses to protect your eyes
from harmful materials or chemicals do
not worry you won't look goofy we'll all
be wearing them together additional
safety protection if instructed make
sure you wear protective gloves lab
coats or ear protection to help from
injuries on your hands body or ears lab
behavior it's very important to follow
all lab behavior instructions to keep
everyone safe in the lab environment
first never work in lab without a
teacher or adult present although you
may feel comfortable doing a lab without
a teacher or adult present that is
strictly prohibited and adults must be
present to ensure you and your peers are
safe and it lowers the risk of injury
please no horseplay pranks or practical
jokes we will be working with dangerous
materials chemicals so it is very
important to behave in a mature and
professional manner to avoid risk of
injuring yourself or your peers please
always listen to teachers or adults
instructions listen to every instruction
you get from a teacher and our adult
this is to keep you and your peers safe
while working with dangerous materials
and chemicals next we move on to proper
use of equipment it is very important to
maintain a safe lab environment and this
starts with the proper use of equipment
you will need to pay attention during
demonstration to make sure you
understand how to operate new equipment
safely and correctly and get the
best results please pay careful
attention to whatever is being
demonstrated by the teacher always
report broken equipment the first thing
everyone should do when getting
equipment is to inspect it to make sure
that it is properly working if you have
any broken piece of equipment do not use
it and report it immediately to a
teacher or an appropriate adult and we
will get you a replacement follow lab
settings this is very important not only
for your safety but also to make sure
that it gets the proper results for your
lab activity following the proper lab
settings for equipment will also ensure
the life of the equipment helping it
last for years and avoiding unnecessary
breakage only use the equipment for its
intended purpose this means do not use a
hot Bunsen burner as a paperweight or
scratch things with rocks other than
glass plates or scratch plate this goes
along with no horseplay in the classroom
next we will talk about possible injury
risks found in our lab class so injury
risk depending on the activity
there can be a high risk for injury in
our science lab especially when
inappropriately using equipment or not
taking safety seriously we must follow
all instructions to keep ourselves and
others safe we're gonna talk about
glassware, glassware can be broken and
if it does break please
tell the teacher or adult that it has
broken before trying to clean up
anything then follow their instructions
on safely cleaning and disposing of the
glass do not clean up without the use of
gloves to avoid cuts and do not avoid
telling a teacher an adult that the
glass has broken for fire, fire is very
dangerous when used improperly so we
will be using Bunsen burners in lab and
this involves an open flame never leave
these open flames unintended we will
also be using hot plates and never put
anything flammable on these hot
plates for chemicals we will be using
hydrochloric acid when working with
rocks and minerals this is a relatively
harmless acid but it can get into your
eyes and on the skin and it can
cause irritation please follow all
directions when using acid and report
any defective bottles to a teacher or
adult when done using these acids
please wash your hands with soap and
water to prevent irritation next we're
going to talk about handling of lab
material this should be done as
instructed to keep yourself and your
peers and the materials safe were going to talk
about rocks when handling rocks be sure
to watch out for sharp edges that can
cause cuts to you or your classmates if
you find a sharp rock please report it
to a teacher or adult and we will get
you a safer sample avoid trying to pick
up large or heavy rocks to examine if
needed please take your lab questions
and instructions to the rock and examine
it rather than bringing the rock to you
to prevent injuries of accidental
dropping always be aware of rocks on the
floor also to avoid tripping hazards and
injuries for glassware when handling
glassware please have two hands on the
glassware at all times one hand
stabilizing the glassware around the
neck and the other hand cradling the
bottom and avoid picking up
glassware that has been heated either
use a special heat-resistant glove or
wait until the glassware has cooled down
inform all other students when glassware
is potentially hot to avoid accidental
burns for hot plates and Bunsen burners
when handling a hot plate or Bunsen
burner make sure you let them cool down
before putting them away to avoid
burning yourself or peers this practice
will also prevent fires please inform
all class mates when a hot plate or
Bunsen burner is still hot if either is
hot by the end of the period and you
need to start putting things away and
leave avoid putting it away and tell a
teacher or an adult that it is still hot
and they will put it off to the side let
it cool and put it away for you acids
when using acids please always read the
label first ensuring that you have the
correct acid to be used and inspect the
bottle for leaks and report malfunction
bottles to a teacher
or an adult try to avoid contact with
skin or eyes to avoid irritation if
exposed to acid please wash your hands
immediately and do not touch any other
students if it gets into your eyes
immediately wash your eyes out in the
eye wash station once done tell the
teacher or an adult
and go to the nurse for further
assistance for allergies if you know of
any potential allergies of a
material that we will be using please
inform a teacher and we will create an
alternative lab activity for you to
protect your safety if we work in the
field
make sure you respect the habitat this
means do not disturb any living 
organisms habitat by breaking tree
limbs pulling up grass or touching
living animals do not remove any living
creatures from its habitat and once back
at the classroom make sure you wash your
hands with soap and water and check for
any ticks or insects if any are found
please inform a teacher or an adult and we
will get you further assistance next
we'll talk about material waste, material
waste can be dangerous when it's not
disposed of correctly please always read
the waste directions and if there
is any confusion ask a teacher or adult
for help or instructions for broken
glassware if disposed incorrectly can
cause injury to the people that are
unaware of the broken glass in the trash
so if glass is broken please tell the
teacher or an adult and we will put the
glass in a special waste bin to keep
everyone protected and to avoid possible
injuries sand or sediment we will be
using sand or sentiment in this lab and
it can cause issues if dumped in
incorrect disposal areas like the sink
never dump solids down the sink it can
cause plumbing backups and issues in the
future please always dispose these
wastes in the proper bins or collection
containers found in the fume hood to
help keep the dust to a minimum
for your breathing safety
always wash your hands with soap and
water to get rid of the risk of the
sediment on your hands too acid if you
need to dispose of acid please tell a
teacher or an adult you need to dispose
of it and they will dilute it to a safe
concentration never pour acid down the
drain or into a sink no matter what
always wash your hands with soap and
water after using acids as well
next we're going to talk about gas usage
gas usage will happen during our
lab period the gas
we'll be using will be propane and our
gas usage will be limited to just Bunsen
burners please do not turn on the
gas unless instructed to this gas is
very flammable and
if not used properly can cause fire or
explosions all students need to read
instructions on how to set up a Bunsen
burner do not turn the gas on until you
get permission from a teacher or an adult
after they have checked to make sure
your Bunsen burner has been assembled
properly gas shut off all students need
to be aware of the emergency gas shutoff
and where it is
this is typically a big red button that
is labeled gas shutoff if fire gets out
of hand or an open flame is unintended
please press the emergency shutoff
button for everyone's safety this button
will cut off all the gas to the room if
you smell you tell our lab we'll always
have access to gas if any student smells
gas please report it to a teacher or an
adult immediately the only gas we have
is propane but propane has a very
distinct odor it will smell like rotten
eggs skunk spray or a deceased animal if
you smell it you tell us next we're
going to talk about emergency equipment
so emergency equipment will be found all
around the room for our safety first
we're going to talk about fire
extinguishers a fire extinguisher is
used to put out fire anywhere in the
room in case of use remember the
acronym pass for proper
extinguishing skills the "P" in pass
stands for pull the pin "A" stands for
aim at the base of the fire the first "S"
stands for squeeze the lever and the
last "S" stands for sweep side to side
just like the fire extinguisher we will
have access to a fire blanket a fire
blanket is used to put out a fire except
the blanket is intended for use on
individuals that have caught on fire if
a student catches on fire remove the
blanket from its container place it on
the individual and tell them to stop
drop and roll inside
the fire blanket to help extinguish the
fire eye wash stations these are used in
case of if a chemical gets into your eyes if
you get a chemical in your eye please go
to the station and place your eyes above
the eye wash station once the water
starts flowing make sure you keep your
eyes open the whole time to allow the
water to flush out the chemicals this
will also work if you get a sediment
stuck in your eyes when we work with
rocks and minerals we will also have a
first-aid kit 
in our classroom in case of small
cuts or scratches that may occur during
lab if you get cut at all please tell
a teacher or an adult and will help to
determine if you need to go to the nurse
or if the first aid kit will work
never let a cut go untreated and never
don't tell a teacher you got cut next
we're going to talk about leaving lab it
is very important for everyone to follow
proper instructions for putting
everything away for your safety and the
safety of the next class
first things first let it cool if we are
using equipment that requires heat be
sure to let it cool down before putting
it away to stop the risk of fire
handling this equipment this hot
equipment can also cause burns to
yourself or your peers if this equipment
is still hot at the end of the lab and
you need to leave please tell the
teacher or adult and we will put the
equipment to the side to let it cool let
me put away when it is safe
follow correct instructions for putting
equipment away make sure everyone puts
equipment away where it belongs do not
put it in a random spot never put
anything in a cabinet that is not stable
that way no one will open it in the
material fall and cause them to
get hurt this will also ensure the life
of the equipment for all the students to
come wipe down your table and clean out
your beakers never leave a mess at your
table other students could possibly be
allergic to materials that you were just
using to maintain the safety of all
students please wipe the table down with
soap and water to get rid of all excess
materials that might have collected on
the tables after cleaning the tables
please dry them with a paper towel
now please look at this photo of the
class circle and discuss with a partner
the safety issues found and please write
an explanation of why the issues you
circled on this picture are issues you
can do this on a separate sheet of paper
now please answer the following true or
false question thank you and I hope you
enjoy our lab period
