Safety Symbols, Equipment & Rules. Disposal Alert This symbol appears when care must be taken to...

Safety Symbols, Equipment & Rules

Disposal Alert This symbol appears when

care must be taken to dispose of materials properly.

Eye Safety This symbol appears

when a danger to the eyes exists. Safety goggles should be worn when this symbol appears.

Clothing Protection Alert This symbol appears when

substances used could stain or burn clothing.

Thermal Safety This symbol appears as

a reminder to use caution when handling hot objects.

Electrical Safety This symbol appears

when care should be taken when using electrical equipment.

• Wear safety goggles when working with chemicals, flames, or heating devices. • If a chemical gets in your eye, flush in water for 15 minutes and notify the teacher.

Safety SymbolsEye Protection

Sharp Objects• When using knifes or other sharp objects always walk with the points facing down. • Cut away from fingers and body.

Electrical Safety• Do not place a cord where someone can trip over it.

• Never use electricity around water.

• Unplug all equipment before leaving the room.

Animal Safety This symbol appears

whenever live animals are studied and the safety of the animals and the student must be ensured.

Open Flame Alert This symbol appears

when use of an open flame could cause a fire or an explosion.

Fire Safety This symbol appears

when care should be taken around open flames.

Safety SymbolsAnimal Safety

• Only handle living organisms with teacher permission.

• Always treat living organisms humanely.

• Wash your hands after handling animals.

Heating Safety• Tie back hair and loose clothes when working with open flames.

• Never look into a container as you are heating it.

• Heated metal and glass looks cool, use tongs or gloves before handling.

• Never leave a heat source unattended.

Chemical Safety This symbol appears

when chemicals used can cause burns or are poisonous if absorbed through the skin.

Fume Safety This symbol appears

when chemical reactions could cause dangerous fumes.

Poison Safety This symbol appears

when poisonous substances are used.

Sharp Object Safety This symbol appears

when a danger of cuts or punctures caused by the use of sharp objects exists.

Biological Hazard This symbol appears

then there is danger involving bacteria, fungi, or protists.

Radioactive Safety This symbol appears

when radioactive materials are used.

Explosion Safety This symbol appears

when care should be taken around open flames.

Plant Safety This symbol appears

when poisonous plants or plants with thorns are handled.

Safety SymbolsChemical Safety

• Read all labels twice before removing a chemical from the container.

• Never touch, taste, or smell a chemical unless instructed by the teacher.

• Transfer chemicals carefully!

Hand Safety• If a chemical spills on your skin, notify the teacher and rinse with water for 15 minutes.

• Carry glassware carefully.

Plant Safety• Do not eat any plants in lab.

• Wash your hands after handling plants.

Top Ten Rules for the Lab

1. ALWAYS wear safety goggles and aprons!

2. Always wear the right clothing; closed-toe shoes = NO sandals; tie back long hair

3. Read over the entire experiment before starting the lab.

4. Notify the teacher IMMEDIATELY of any problems.

5. Be aware of your surroundings in the lab.

6. No food or drinks in the lab.

7. Always clean up lab area after every experiment.

8. Always wash hands after every lab.

9. Absolutely no horse-play during a lab.

10. USE COMMON SENSE.

HAVE FUN AND LEARN!

Identifying Lab Equipment

Names of common lab equipment

Their uses

Erlenmeyer Flask

Mostly used to “swirl” substances; NOT for measuring out liquids

Funnel

Needed to slowly and accurately add substance

Graduated Cylinder

Precisely measure out liquids; usually in milliliters

Bunsen Burner

Most common way of heating substances

Watch Glass

Used for burning substances or place hot materials on to cool

Eye Dropper

Needed to add small amounts

Beaker

A “mixing” or “holding” container for substances; NOT for measuring amount

Florence Flask

Mostly used for boiling liquids

Wire Gauze

Used to protect beaker from direct flame of Bunsen burner

Ring Stand

Needed to set up certain apparatuses; can clamp different things to it

Ring Clamp

Used with ring stand; hold things

Test Tube

Needed when working with small amounts

Test Tube Clamp

Holds a test tube so hands will not be in danger of burning

Tongs

Needed to move hot glassware; NOT used to pick up test tubes

Test Tube Rack

Holds test tubes

Triple Beam Balance

Needed to measure out solids, usually in grams

What’s Wrong With This Picture?

What’s Wrong With This Picture?

What’s Wrong With This Picture?

What’s Wrong With These Statements?

1. Hal says that his teacher is solely responsible for preventing laboratory accidents.

2. Keshia started the lab activity before reading it through completely.

3. Ricardo decided to do a lab activity that he read about in a library book before the teacher came into the classroom.

4. Stephanie says that the safety goggles mess up her hair and give her raccoon eyes. She refuses to wear them.

5. Barbie and Ken accidentally break a beaker full of some chemical. Instead of risking getting in trouble they quickly clean up the mess with paper towel and throw it in the garbage.