Ocean Depth and Light

1
Ocean Depth and Light
2
What colors give animals in the jungle the best
camouflage?

• RED?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?

image courtesy of http//commons.wikimedia.org/wik
i/FileUS_Woodland_pattern.png
3
What colors give animals in the desert the best
camouflage?

• RED?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

image courtesy of http//commons.wikimedia.org/wik
i/FileSix-Color_Desert_Pattern.jpg

• BROWN?

4
What colors give animals in the ocean the best
camouflage?

• RED?

?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?

5
http//www.youtube.com/watch?vufxGw8EqY5Q
6
Which photo was taken in the euphotic zone?
A
B
http//www.public-domain-image.com/nature-landscap
es-public-domain-images-pictures/underwater-public
-domain-images-pictures/coral-reef-underwarer-phot
o.jpg.html

• Image ID nur04506, Voyage To Inner Space -
  Exploring the Seas With NOAA Collect
• Location Atlantic Ocean
• Photographer P. Rona
• Credit OAR/National Undersea Research Program
  (NURP) NOAA

7
Which photo was taken in the euphotic zone?
B
A
http//www.public-domain-image.com/nature-landscap
es-public-domain-images-pictures/underwater-public
-domain-images-pictures/coral-reef-underwarer-phot
o.jpg.html
Image ID nur04506, Voyage To Inner Space -
Exploring the Seas With NOAA Collect Location
Atlantic Ocean Photographer P. Rona Credit
OAR/National Undersea Research Program (NURP)
NOAA
8
Which fish lives in the disphotic zone?
http//www.pbs.org/wgbh/nova/sciencenow/0305/04-gl
ow-06.html
http//coralreef.noaa.gov/aboutcorals/values/fishe
ries/resources/pifsc_cred_wrasse.jpg
A
B
9
Which fish lives in the disphotic zone?
http//www.pbs.org/wgbh/nova/sciencenow/0305/04-gl
ow-06.html
http//coralreef.noaa.gov/aboutcorals/values/fishe
ries/resources/pifsc_cred_wrasse.jpg
A
B
10
Which crab lives in the Aphotic zone?
http//stellwagen.noaa.gov/education/adulted/inver
tid_crustaceans.html
http//oceanexplorer.noaa.gov/explorations/06newze
aland/media/hermitcrab_600.html
A
B
11
Which crab lives in the Aphotic zone?
http//stellwagen.noaa.gov/education/adulted/inver
tid_crustaceans.html
http//oceanexplorer.noaa.gov/explorations/06newze
aland/media/hermitcrab_600.html
B
A
12
Depth Light

• So what do you know about light?

13
Depth Light

• Can you name the parts of a light wave?

Direction of wave
?
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
14
Depth Light

• Can you name the parts of a light wave?

Direction of wave
crest
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
15
Depth Light

• Can you name the parts of a light wave?

Direction of wave
?
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
16
Depth Light

• Can you name the parts of a light wave?

Direction of wave
trough
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
17
Depth Light

• Can you name the parts of a light wave?

Direction of wave
?
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
18
Depth Light

• Can you name the parts of a light wave?

Direction of wave
amplitude
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
19
Depth Light

• Can you name the parts of a light wave?

Direction of wave
?
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
20
Depth Light

• Can you name the parts of a light wave?

Direction of wave
wavelength
http//commons.wikimedia.org/wiki/FileSimple_wave
.png
21
Depth Light

• Different wavelengths produce different colors.

• http//commons.wikimedia.org/wiki/FileColors_and_
  wavelengths.png

22
Depth Light

• Sunlight, is white light.
• It has all wavelengths colors.

• http//commons.wikimedia.org/wiki/FileColors_and_
  wavelengths.png

23
Depth Light

• We can use a prism to separate colors by
  wavelength.

http//commons.wikimedia.org/wiki/FileLight_dispe
rsion_conceptual_waves.gif
24
Depth Light

• What is the order?
• ROY G. BIV

http//commons.wikimedia.org/wiki/FileLight_dispe
rsion_conceptual_waves.gif
25
Depth Light

• When light hits a material like water it is
• Reflected,
• Absorbed,
• or transmitted.

incident ray
reflected
absorbed
transmitted
26
Depth Light

• What is the color of water?

27
Depth Light

• What is the color of water?
• BLUE

28
Depth Light

• What is the color of water?
• BLUE

• What happens when light passes through a blue
  material?

29
(No Transcript)
30
Depth Light

• What happens when light passes through a blue
  material?
• Every color but blue is absorbed

Absorbed light
transmitted light
31
Depth Light

• So what happens to color at different depths of
  the ocean?
• Materials
• black felt represents the aphotic zone
• square felt pieces in assorted colors (ROY G.BV)
• Blue plastic goggles to represent layers of
  water

32
Depth Light

• PROCEDURE
• Place black felt with color pieces face-up.
• Add one blue layer at a time in front of your
  eyes.
• Put an X in the box for every color you can see.

33
Depth Light - (copy the table)
layers R O Y G B V
0
1
2
3
4
34
RESULTSWhat color (s) disappears with 1 layer?
2? 3?Is there any color which did not disappear?
layers R O Y G B V
0
1
2
3
4
35
Depth Light

• Some colors travel deeper, due to shorter
  wavelength.
• Violet gets scattered by water.

http//disc.sci.gsfc.nasa.gov/education-and-outrea
ch/additional/science-focus/ocean-color/oceanblue.
shtml
36
Depth Light

• How does that affect the organisms that live in
  the ocean?

37
Depth Light

• PROCEDURE
• Have your partner randomly distribute pieces on
  the reverse side of the black felt.
• (Dont peek!)
• Put on your goggles to simulate the Desphotic
  zone (3 layers).

38
Depth Light

• PROCEDURE
• Grab the first 10 pieces you can see. (no feeling
  around!)
• Record results.
• Repeat for your partner.
• Total your results.

39
Depth Light

• PROCEDURE (copy the table)

red orange yellow green blue violet black
you
partner
total
40
Depth Light

• RESULTS?
• So what were the easiest colors to find?
• Which colors were rarely picked up?

red orange yellow green blue violet black
you
partner
total
41
Time to show what you have learned.
42
What colors give animals in the jungle the best
camouflage?

• RED?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?

image courtesy of http//commons.wikimedia.org/wik
i/FileUS_Woodland_pattern.png
43
What colors give animals in the desert the best
camouflage?

• RED?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

image courtesy of http//commons.wikimedia.org/wik
i/FileSix-Color_Desert_Pattern.jpg

• BROWN?

44
What colors give animals in the ocean the best
camouflage?

• RED?

?

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?

45
What colors give animals in the ocean the best
camouflage?

• RED?

1) Design your own camouflage pattern

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?

46
What colors give animals in the ocean the best
camouflage?

• RED?

1) Use data from your experiments to design your
own camouflage pattern
2) Write a paragraph describing your camouflage
pattern. Use data from your experiment to explain
why you chose the colors in the pattern.

• ORANGE?

• YELLOW?

• GREEN?

• BLUE?

• VIOLET?

• BROWN?