What is the first thing you should do if a chemical spills on your skin?​

• Ignore it and continue the experiment​

• Rinse the affected area with water immediately

• Wipe it off with a paper towel​

• Wait for the teacher to come over

​

Which of the following should you always wear while working in the lab?

• Sunglasses

• Flip-flops

• Safety goggles

• A party hat

What should you do if you accidentally break glassware in the lab?

• Sweep it up with your hands

• Call your teacher and follow their instructions

• Kick the pieces under the table

• Ignore it

Where should you dispose of chemical waste?

• In the sink

• In the trash can

• Follow your teacher’s instructions for proper disposal

• Take it home with you

Tags

NGSS.HS-LS2-7

Why should you tie back long hair in the lab?

• So it looks neat​

• To keep it out of the way during experiments​

• To prevent it from catching fire or contaminating experiments​

• Both B and C​

Which of the following is NOT allowed in the lab?

• Eating and drinking​

• Reading the instructions

• Wearing closed-toe shoes​

• Using safety equipment​

Before starting an experiment, you should_________

• skip reading the instructions to save time.

• read and understand all safety guidelines and procedures.

• assume you already know what to do.

• start immediately without checking for safety equipment.​

You notice a classmate handling chemicals without wearing gloves. What is the most appropriate action to take?

• Ignore it, as it’s their responsibility to follow safety rules​

• Tell the teacher immediately and ensure your own safety​

• Offer them your gloves so they can continue​

• Take over their experiment to do it correctly​

Why is it important to waft (gently wave the air toward your nose) instead of directly inhaling a substance?

• It allows you to better enjoy the scent

• It prevents overwhelming your sense of smell

• It minimizes exposure to potentially harmful fumes

• It ensures the substance is safe to handle

A chemical in the lab is labeled as "corrosive." What should you do before handling it?​

• Wear appropriate protective equipment, such as gloves and goggles​

• Test it on a small area of skin to check for a reaction​

• Pour a small amount into the sink to see its effect on water​

• Avoid using it entirely, as it’s too dangerous​

Tags

NGSS.HS-ETS1-3