Scientific Skills Quiz

Why is it important to wear safety goggles in the lab?

• To block peripheral vision

• To make it harder to see

• To look cool and stylish

• To protect eyes from potential hazards in the lab.

What is the correct way to read a graduated cylinder?

• Read the measurement at the top of the meniscus at eye level.

• Read the measurement from the side of the graduated cylinder.

• Read the measurement while looking down into the graduated cylinder.

• Read the measurement at the bottom of the meniscus at eye level.

What is the first thing you should do in case of a lab accident?

• Ignore the accident and continue working

• Notify the lab supervisor or instructor.

• Blame a colleague for the accident

• Run away from the lab

Why is it important to follow proper measurement techniques in the lab?

• Following proper measurement techniques in the lab is crucial for accuracy, reliability, and reproducibility of experimental results.

• Proper measurement techniques are unnecessary in the lab

• Following proper measurement techniques leads to inaccurate results

• It is acceptable to estimate measurements in the lab

What is the purpose of a safety shower in a lab?

• To rinse off hazardous chemicals or substances from skin or clothing

• To enhance the lighting in the lab

• To provide a place to store lab equipment

• To keep the lab temperature regulated

How should you dispose of broken glassware in the lab?

• Leave broken glassware on the lab bench.

• Recycle broken glassware with plastic items.

• Throw broken glassware in the regular trash bin.

• Dispose of broken glassware in a designated glass disposal container.

What is the significance of using a balance in experiments?

• Decorative purposes

• Accurate measurement of mass

• Balancing the experiment

• Ensuring symmetry

What is the proper way to handle chemicals in the lab?

• Store chemicals randomly

• Follow safety protocols, wear PPE, label containers, store chemicals correctly, and dispose of them safely.

• Ignore safety protocols

• Dispose of chemicals in regular trash

Why should you never taste or smell chemicals in the lab?

• To impress others with your bravery

• To prevent potential harm or injury from exposure to toxic or harmful chemicals.

• To test if they are safe to consume

• To enhance the flavor of the chemicals

How can you ensure accurate measurements when using a ruler?

• Hold the ruler at an angle

• Use the largest unit for precision

• Place the ruler flat, read at eye level, use smallest unit

• Read the measurement from below