Unit 0 Review - Safety

Which item is NOT considered a piece of safety equipment for chemistry class?

• Helment

• Safety Shower

• Fire Extinguisher

• Eye-wash Station

When you finish working in the lab you should always

• treat your hands with skin lotion.

• wash your hands thoroughly with soap and water.

• wipe your hands on a towel.

• wipe your hands on your clothes.

You should always return all unused chemicals to their original containers.

• True

• False

Answer explanation

Never return chemicals to their original container to avoid contamination. Ask the teacher how to dispose of any unused chemicals.

When is it OK to eat or drink in the lab?

• Always
• Never
• When you aren't using chemicals

• After everyone has cleaned up

Answer explanation

Only eat or drink in the class area. Even after cleaning there could be dangerous chemicals that were missed making it unsafe.

What should you do if you break glass in the lab?

• Tell the teacher.
• Sweep up the glass.
• Pick up the glass with your hands.
• Ignore it; the teacher will clean it up when they sees it later.

Answer explanation

Only the teacher should handle broken glass as it can be very dangerous.

I must follow all instructions, written and verbal, about the laboratory procedures given by the teacher.

• True
• False

What is the appropriate dress for lab?

• long sleeves and loose clothing should be rolled up
• closed toe shoes should be worn
• long hair should be pulled back
• all of the above

It's fine to smell chemicals directly from their containers.

• True
• False

Answer explanation

Always waft to smell any chemicals in lab

The proper way to dispose of liquids is

• down the drain

• as instructed by the teacher

• out the window

• put them back in the container you got them from

Horseplay or practical jokes in the laboratory are

• always against the rules.

• okay.

• not dangerous.

• okay if you are working alone.