Take the SCUBA Quiz

Introduction

You and your partner are co-owners of an Alaskan SCUBA diving certification company.In order ensure the safety of your students, you will create an informational brochure teaching them about the gas laws that affect diving, such as Dalton's Law of partial pressures, Boyle's Law, Henry's Law, Gay-Lussacs’ Law, and Charles' Law.

The Task

You will use the gas laws to prevent your divers from getting "The Bends," air embolisms, and oxygen toxicity.Since we are also in cold Alaskan waters, please take this additional danger into consideration as you are preparing your brochure. In order to do this, you will:

·  Take the SCUBA Quiz

·  Do the Interactive Diving Deep

http://www.pbs.org/wnet/secrets/previous_seasons/case_andreadoria/index.html

·  Determine what SCUBA stands for and how it works.

·  Identify how Boyle's Law, Charles' Law, Dalton's Law, and Henry's Law influence divers with increased depth.

·  Define "the bends," air embolisms, nitrogen narcosis and oxygen toxicity.

·  Determine how cold water concerns should be addressed in your pamphlet.

Put together a tri-fold pamphlet to distribute to your divers.The pamphlet must have

1.  a title page giving some information about your company

2.  an introduction to SCUBA page

3.  one page for "the bends" and air embolisms

4.  one page for oxygen toxicity

5.  one page for nitrogen narcosis

6.  the last page is dedicated to 2 extra considerations that must be made when diving in cold water.At least one of these considerations must pertain to gases.

Pages 3-5 should contain an explanation of each condition using the appropriate gas law, physiology, symptoms, and treatment.

SCUBA QUIZ

1.  What does scuba stand for?

2.  At what depth will you reach 1ATM of pressure?

3.  At what depth will you reach 2ATM of pressure?

4.  What is a pressure squeeze?

5.  What are the bends?

6.  What are the 3 reasons you might need a scuba dive knife?

7.  What 2 metals are scuba tanks made from?

8.  Answer true or false:

a.  air is mostly oxygen

b.  a properly fitted dive mask is tight

c.  a properly fitted wet suit is tight

d.  a pony tank is only for emergencies

e.  it's OK to harvest coral as long as it's not alive

9.  What is RNT, on a dive table?

10. What is nitrogen narcosis?

11. According to Charles' law, what increases as the temperature of a gas increases?

12. According to Boyle's law, what is increased as you decrease the volume of a gas?

13. According to Henry's law, what causes a solute to absorb more gases into solution?

14. Which 3 air spaces are most affected when descending?

15. Who invented the aqua-lung?

Helpful Websites:

http://www.chemtutor.com/gases.htm

http://www.howstuffworks.com/question101.htm

http://www.howstuffworks.com/question493.htm

http://www.chm.bris.ac.uk/webprojects2001/meeraus/physicallaws.html

http://science.howstuffworks.com/framed.htm?parent=question493.htm&url=http://www.iantd.com/rebreather/phys.html

http://science.howstuffworks.com/framed.htm?parent=question493.htm&url=http://scuba-doc.com/

http://scuba.about.com/od/?once=true&http://scuba.about.com/od/?once=true&

http://www.ecophotoexplorers.com/antarctica_diving.asp

http://www.sdm.scot.nhs.uk/scuba_diving/