Lab Safety and Measurement

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

• Ignore it and continue working

• Use a towel to wipe it off

• Apply soap and scrub vigorously

• Rinse with water

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

• To look cool and professional.

• To protect the eyes from potential hazards.

• To block out the bright lights.

• To avoid getting makeup smudged.

What should you do if you accidentally break a glass beaker?

• Clean up the broken glass yourself

• Notify your teacher or supervisor and follow their instructions.

• Ignore the broken glass and continue working

• Hide the broken glass and pretend it didn't happen

Why is it important to read and follow all instructions before conducting an experiment?

• To save time and effort

• To ensure accuracy, safety, and reliable results.

• To increase the chances of getting incorrect results

• To make the experiment more challenging

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

• Chemicals in the lab have no effect on the body when ingested or inhaled.

• Tasting or smelling chemicals in the lab is a fun experiment.

• Chemicals in the lab can be toxic or harmful if ingested or inhaled.

• Chemicals in the lab are delicious and should be tasted.

Why is it important to clean up spills immediately?

• To make the floor slippery and dangerous.

• To attract more insects and pests.

• To create a messy and unhygienic environment.

• To prevent accidents and injuries.

What is the volume of the liquid in this graduated cylinder?

• 19 mL 
• 35 mL 
• 24 mL 
• 1.9 mL

What is the volume of the liquid in this graduated cylinder?

• 8.5 mL 
• 7.5 mL 
• 8 mL 
• .1 mL

• 40 mL

• 50 mL

• 38 mL

• 42 mL

What is the length of the straw?

• 8 cm 
• 0 cm 
• 7 cm 
• 1 cm