Correct Lab Practices

When putting your microscope away, which objective lens should be over the stage?

• high power objective
• medium power objective
• low power objective

What should you do with your slide and coverslip when cleaning up?

• rinse them off and leave them on paper towel to dry
• rinse them off and throw them in the trash
• throw them in the trash
• slip them in your pocket and hope nobody notices

Where should you put your empty plastic bottle if you drink a beverage during science class?

• In the sink; my teacher should clean up after me
• In the blue recycling wastebasket
• Leave it on the table; the next student should throw it away
• Toss it on the floor for my teacher or the custodian to clean up.

When your chromebook or phone is charging, where should it be?

• Next to the electrical outlet
• As far from the electrical outlet as possible
• On one of the classroom desks, so I can create a tripping hazard

When preparing a wet mount slide, how much water should be used?

• 1-2 drops
• 1 cup
• 1 liter
• 10 milliliters

When preparing a wet mount slide, where should the slide be?

• on the stage of the microscope
• on the lab counter
• held in your hand
• on your lap

What is the best thing to do with paper garbage?

• Put it in the blue recycling trashcan
• Leave it on the floor so that my teacher or the custodian can clean it up
• Put it balled up in the sink; my teacher will clean it up
• Leave it on the desk; the next student will clean up after me

I should get my lab supplies...

• when I enter the room
• about 10 minutes before the end of the period
• after my teacher has instructed me to
• I'll let my lab partners get them; I've got to text my friend

The best procedure for focusing a compound light microscope is

• get the specimen focused and centered at low power before going to medium power
• start on high power, then center the specimen
• start on high power, using the coarse adjustment knob
• start on medium power, then decide whether to go down to low or up to high

What BEST thing to do with your microscope's power cord when you put it away?

• leave it dangling
• wrap it around the microscope
• bundle it up and secure it with the plastic tie
• disconnect the cord and hide it from the next student.