Hand in when entering the lab. No admittance without a completed PreLab.

1. What three water purification techniques will you use? _______________________________ __________________________________________________________________________
2. Define "Filtration" ____________________________________________________________ __________________________________________________________________________
3. Define "Filtrate" _____________________________________________________________ __________________________________________________________________________
4. What will you use to measure the volume of your foul water sample? ___________________ __________________________________________________________________________
5. How do you support a funnel? __________________________________________________
6. Oil and water separate into distinct layers, which substance will you drain out of the funnel? __________________________________________________________________________
7. After separation, what will you do with the oil portion? _______________________________
8. After separation, what will you do with the water portion? ____________________________ __________________________________________________________________________
9. How will you make a sand filter? ________________________________________________ __________________________________________________________________________
10. Why should the sand and gravel be pre-moistened _________________________________ __________________________________________________________________________
11. What is purpose of charcoal adsorption? _________________________________________
12. If your filtrate has bits of charcoal in it what do you do? ______________________________ __________________________________________________________________________
13. What do you do with your purified water? _________________________________________
14. What is the last thing you must do before leaving the lab? ____________________________

Questioins? Comments??
Ted Richardson, Toledo Technology Academy