Stemscopes Exam Science Safety and Lab Skills

Question 1

What should you do first if a chemical splashes in your eyes in the lab?

Accepted Answer

Rinse eyes immediately with water for 15 minutes at the eyewash station

Answer

Tell the teacher and wait

Answer

Wipe eyes with a paper towel

Answer

Put on safety goggles after the fact

Question 2

Which piece of lab equipment is used to measure the volume of a liquid accurately?

Accepted Answer

Graduated cylinder

Answer

Beaker

Answer

Erlenmeyer flask

Answer

Test tube

Question 3

What is the correct way to smell a chemical in the lab?

Accepted Answer

Waft the vapors toward your nose with your hand

Answer

Put your nose directly over the container

Answer

Take a deep breath over the container

Answer

Smell only if no one is watching

Question 4

Why should you wear safety goggles during a lab experiment?

Accepted Answer

They protect your eyes from chemical splashes and debris

Answer

They make you look professional

Answer

They improve vision

Answer

They are required by fashion standards

Question 5

What does the MSDS (Material Safety Data Sheet) provide information about?

Accepted Answer

Hazards, handling, and emergency procedures for a chemical

Answer

The cost of chemicals

Answer

The history of a chemical compound

Answer

The chemical's smell and color only

Question 6

What should you do with leftover chemicals after an experiment?

Accepted Answer

Dispose of them according to teacher instructions

Answer

Pour them down the drain

Answer

Mix them together to neutralize

Answer

Keep them for the next experiment