Question

what is the first thing you need to do when you get a new lab? *
read the entire lab before you begin and follow all lab instructions exactly as explained by your teacher
start playing with the lab supplies.
ask the teacher for help on how to start
start doing step #1 on the procedure.

Explanation:

Safety and proper procedure are crucial in a lab. Reading the entire lab and following teacher - given instructions ensures understanding of safety protocols, materials, and steps, reducing risks and errors.

Answer:

Read the entire lab before you begin and follow all lab instructions exactly as explained by your teacher