task 6

9/6/2019 Ship Tasks

https://bconline.broward.edu/content/Courses/Oceanography/OCE1001L/Labs/Unit_3/Task_PhysH2O.html 1/5

Task - The Ice Bucket Challenge Introduction

Exhaused from your daily chores, you snuggle up next to a bag of potatoes for a nap. No sooner had you closed your eyes in the shadow of the sails, than an bucket of icy water is splashed in your face. You look up and see Toothless Frownin' Marie Bellamy glaring at you. As you stand up in a rather foul and cold mood the Captain approaches the two of you. "It seems that our water supplies be getting low 'n Marie Bellamy has taken it upon herself to waste the water," the Captain says in a disappointed tone.

"Marie, be off and gather some rum buckets and russle up some of the other swashbucklers. And ye..." the Captain gives you a look over. "Ah, ye've be busy on me boat. Ye've made it 'tis far, thar's hope for ye yet. Dry yourself off and meet me in my study. While I ain't show ye how to turn rum into meed, I can teach ye more about the salty seven seas."

The Captain's Orders To help you understand the oceanic world, you'll need to explore water's unique and usual physical properties and link to its chemical properties. There is a computer on the Captain's desk. You'll need to use it to figure out what's in your water. Answer the following questions using your survival skills and the internet.

Objectives

9/6/2019 Ship Tasks

https://bconline.broward.edu/content/Courses/Oceanography/OCE1001L/Labs/Unit_3/Task_PhysH2O.html 2/5

Explore water's unique and anomalous chemical properties and link to its physical properties.

Explore water's unique and anomalous physical properties and link to its chemistry.

Demonstrate, through data collection and analyses, the chemical properties of sea-water.

Questions 1. Draw two water molecules and label the Hydrogen and Oxygen

atoms.

2. A bug can walk on water because of what property of water?

3. Which phase of water has the largest distance between water molecules: Gas, Liquid, or Solid?

4. Which phase of water has the smallest distance between water molecules: Gas, Liquid, or Solid?

5. What term is used to describe when water turns from liquid to gas?

6. What term is used to describe when water turns from gas to liquid?

7. What term is used to describe when water turns from liquid to solid?

8. What term is used to describe when water turns from solid to liquid?

9. At the beach, on a hot day, in which substance are molecules moving with the highest internal velocity: Sand, Water, or Asphalt?

10. What happens to freshwater density when temperature rises from 10℃ to 20℃?

11. What happens to freshwater density when temperature descends from 20℃ to 10℃?

12. What happens to freshwater density when temperature rises from 1to 4℃?

13. What happens to freshwater density when temperature descends from 4℃ to 1℃?

14. What happens to seawater density when temperature rises from 1℃ to 4℃?

9/6/2019 Ship Tasks

https://bconline.broward.edu/content/Courses/Oceanography/OCE1001L/Labs/Unit_3/Task_PhysH2O.html 3/5

15. What happens to seawater density when temperature descends from 4℃ to 1℃?

16. What is the freezing point of freshwater? 17. What is the boiling point of freshwater? 18. What happens to water's freezing point when salinity increases? 19. What happens to water's boiling point when salinity increases? 20. Why do some people add salt (increase the salinity) to the water

before boiling pasta noodles?

21. What happens to the heat of the surroundings during evaporation? 22. What happens to the heat of the surroundings during precipitation? 23. What happens when the relative humidity of air equals 100%?

24. What happens when the relative humidity of air equals 90% and the air warms?

25. What happens when the relative humidity of air equals 90% and the air cools?

26. Based on the "Selective Color Absorption Underwater" figure, what color of light is absorbed first in the open ocean?

27. What color of light lasts the longest and thus gives this water its color?

9/6/2019 Ship Tasks

https://bconline.broward.edu/content/Courses/Oceanography/OCE1001L/Labs/Unit_3/Task_PhysH2O.html 4/5

28. White light contains all colors of the spectrum (Red, Orange, Yellow, Green, Blue, Indigo, Violet). What color(s) does green pigment (chlorophyll) absorb?

29. What color does green pigment (chlorophyll) reflect? 30. Which of these water types has the deepest photic zone (light

travels deepest)?

Hot water, Cold water, or No difference

9/6/2019 Ship Tasks

https://bconline.broward.edu/content/Courses/Oceanography/OCE1001L/Labs/Unit_3/Task_PhysH2O.html 5/5

Water with lots of sediment, Clear of sediment, or No difference

Water with lots of plankton, Desert water (no life), or No difference

How to Submit Your Task Answer the questions on a word processing document. Once you have finished the assigned task, submit the document to the Captain's dropbox.