Lab Safety
This piece of personal protective equipment must be worn at all times when working with chemicals, heat, or glassware.
What are Safety Goggles?
A small, thin glass tube used to hold, mix, or heat small quantities of chemical samples.
What is a Test Tube?
Zeros located at the beginning of a number are not counted in significant figures.
What are leading zeros?
What are closed-toed shoes?
The instrument used in modern science labs to quickly measure the mass of an object in grams.
What is a Digital Balance/Electronic Scale?
The number of significant figures in the value 0.00520.
What is 3?
If a chemical splashes into your eyes, you should immediately use this equipment and rinse for at least 15–20 minutes.
What is the Eyewash Station?
The rubber-coated tool specifically used to pick up and move hot beakers.
What are Beaker Tongs?
The value 45.678 rounded to 3 significant figures.
What is 45.7?
The very first thing you should do if glass breaks, a chemical spills, or an injury occurs in the lab.
What is tell/notify the teacher?
A glass container with a flat bottom and a cone-shaped, narrow neck that allows easy swirling without spilling.
What is an Erlenmeyer Flask?
Zeroes located at the end of a number are only significant if this is present in the number.
What is a Decimal Point?
If you spill a chemical on you body.
What is the safety shower?
A tall, narrow glass tool with marked lines used to precisely measure liquid volume.
What is a Graduated Cylinder?
Zeroes located between non-zero digits (like in $505$) are always considered this.
What is Significant?/Sandwich zeroes?