Exploring Lab Glassware and Liquid Handling

What should you always wear when handling glassware in the lab?

• Lab coat

• Face mask

• Goggles

• Gloves

How many milliliters are there in one liter?

• 500

• 1500

• 1000

• 100

What feature of a beaker makes it suitable for pouring liquids?

• Wide mouth

• Narrow neck

• Flat bottom

• Spout

Why is the narrow neck of a flask useful?

• It makes it easier to pour liquids.

• It makes the flask more durable.

• It allows for better stirring and swirling without splashing.

• It helps in measuring precise volumes.

What is the curved surface of a liquid in a graduated cylinder called?

• Surface tension

• Convex

• Concave

• Meniscus

How should you read the measurement of a liquid in a graduated cylinder?

• From the top of the meniscus

• From the middle of the meniscus

• At eye level from the bottom of the meniscus

• From the side of the cylinder

What is the purpose of a test tube rack?

• To measure liquids

• To heat liquids

• To safely handle and store test tubes

• To mix chemicals

What is a water bath used for?

• To mix chemicals

• To measure the temperature of liquids

• To heat test tubes safely

• To cool down liquids

What should you never do when using a hot plate?

• Wear goggles

• Use a test tube rack

• Heat a closed container

• Use a thermometer

What is a pipette used for?

• To store chemicals

• To draw up and dispense small amounts of liquid

• To heat liquids

• To measure large volumes of liquid