LAB SAFETY HO DEBRIEF

Tahoma Jr. High8th Grade ScienceMaple Valley, WA

Eyes are closed

Top is off bottle

Clutter on desk

Test tube is pointed at partner

Hair is hanging down

Beaker knocked off desk

More clutter

No eye protection

Clothing protection?

Eating in lab

Sleeves can knock over lab materials

Removing plug incorrectly

Clutter on deskFood! More food

Not wafting

1. You’re headed to Springfield Nuclear Power Plant’s laboratories to help Homer figure out which donut has the most sugar in it. What on Earth will you wear?

A. An XXL T-shirt, baggy shorts and sandals and a big necklace made of seashells.

B. Jeans, a regular T-shirt, sneakers and a Mickey Mouse watch.

C. A droopy loose sweatshirt with hood, high-heels, long flowing hair and a charm bracelet.

2. Everybody else is busy, however, you’re not sure what to do.

A. Ask the teacher what to do.

B. Nothing in science is dangerous, so start experimenting – that’s why you’re here!

C. Re-read instructions, ask any group members if they’re sure of what to do – and if not, then ask the teacher

3. Uh-oh… you spilled acid! Now what??

A. Quick! Clean up the spill before your teacher finds out and gives you a detention!!

B. Use paper-towels to soak up the acid and then throw out in the proper trash can.

C. Keep people and things away from the spill and then get your teacher for help.

4. You weren’t watching that test-tube, and it rolled off the table and broke.

A. Carefully pick up the pieces, put them in a paper towel and throw them out.

B. Keep people away and then use a dustpan and broom to put the pieces in a can.

C. Use your shoe to grind the pieces into dust and then sweep it into a corner.

5. You forgot to label those beakers of chemicals, and you’re not sure which is the strong acid.

A. Dip your finger in and take a taste test (nothing we use in science is dangerous!).

B. Take a big sniff (use one of your five physical senses)

C. Slowly pull stronger and stronger wafts of vapor to get a smell and/or use pH paper test.

When entering/working in a new lab, it’s always good to check out the safety equipment, etc.

(just like the safety briefing in an airplane)

Look for eyewashes, showers, fire extinguishers, power OFF buttons, fire blankets, exits, etc.

Beaker

basic container used for GENERAL

measuring and mixing

(it’s not very accurate)

Flask (Erlenmeyer)

used for storing/mixing

chemicals

Test Tube Holder

for holding test tubes

while being heated

Graduated Cylinder

for accurately measuring liquids or powdered

solids

GraduatedCylinder

DropoutCylinder

Bottle Brush

for cleaning test tubes

Test Tube Rack

for drying or holding test tubes

Dropper

(or pipette)

for small amounts of

liquids

NOT A SQUIRT GUN !

Spatula and Scoopula

for getting small

amounts of solids out of containers

end show