ocean depth and light
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Ocean Depth and Light
What colors give animals in the jungle the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?image courtesy of http://commons.wikimedia.org/wiki/File:US_Woodland_pattern.png
What colors give animals in the desert the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
image courtesy of http://commons.wikimedia.org/wiki/File:Six-Color_Desert_Pattern.jpg
What colors give animals in the ocean the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
?
Which photo was taken in the euphotic zone?
A B
http://www.public-domain-image.com/nature-landscapes-public-domain-images-pictures/underwater-public-domain-images-pictures/coral-reef-underwarer-photo.jpg.html
Image ID: nur04506, Voyage To Inner Space - Exploring the Seas With NOAA CollectLocation: Atlantic OceanPhotographer: P. RonaCredit: OAR/National Undersea Research Program (NURP); NOAA
Which photo was taken in the euphotic zone?
A B
http://www.public-domain-image.com/nature-landscapes-public-domain-images-pictures/underwater-public-domain-images-pictures/coral-reef-underwarer-photo.jpg.html
Image ID: nur04506, Voyage To Inner Space - Exploring the Seas With NOAA CollectLocation: Atlantic OceanPhotographer: P. RonaCredit: OAR/National Undersea Research Program (NURP); NOAA
Which fish lives in the disphotic zone?
A B
http://www.pbs.org/wgbh/nova/sciencenow/0305/04-glow-06.html
http://coralreef.noaa.gov/aboutcorals/values/fisheries/resources/pifsc_cred_wrasse.jpg
Which fish lives in the disphotic zone?
A B
http://www.pbs.org/wgbh/nova/sciencenow/0305/04-glow-06.html
http://coralreef.noaa.gov/aboutcorals/values/fisheries/resources/pifsc_cred_wrasse.jpg
Which crab lives in the Aphotic zone?
A Bhttp://oceanexplorer.noaa.gov/explorations/06newzealand/media/hermitcrab_600.html
http://stellwagen.noaa.gov/education/adulted/invertid_crustaceans.html
Which crab lives in the Aphotic zone?
Ahttp://oceanexplorer.noaa.gov/explorations/06newzealand/media/hermitcrab_600.html
http://stellwagen.noaa.gov/education/adulted/invertid_crustaceans.html
B
Depth & Light
•So what do you know about light?
Depth & Light•Can you name the parts of a light wave?
Direction of wave
?
http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
crest
http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
?http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
troughhttp://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
?http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
amplitudehttp://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
?
http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light•Can you name the parts of a light wave?
Direction of wave
wavelength
http://commons.wikimedia.org/wiki/File:Simple_wave.png
Depth & Light
•Different wavelengths produce different colors. http://commons.wikimedia.org/wiki/
File:Colors_and_wavelengths.png
Depth & Light•Sunlight, is white light.•It has all wavelengths & colors. http://commons.wikimedia.org/wiki/
File:Colors_and_wavelengths.png
Depth & Light•We can use a prism to separate colors by wavelength.
http://commons.wikimedia.org/wiki/File:Light_dispersion_conceptual_waves.gif
Depth & Light•What is the order?•ROY G. BIV
http://commons.wikimedia.org/wiki/File:Light_dispersion_conceptual_waves.gif
Depth & Light•When light hits a material like water it is:•Reflected,•Absorbed,•or transmitted.
incident ray
reflected
transmitted
absorbed
Depth & Light
•What is the color of water?
Depth & Light
•What is the color of water?•BLUE
Depth & Light•What is the color of water?•BLUE
•What happens when light passes through a blue material?
Depth & Light•What happens when light passes through a blue material?•Every color but blue is absorbed
Absorbed light
transmitted light
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
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.
Depth & Light - (copy the table)
layers R O Y G B V
0
1
2
3
4
RESULTS:What 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
Depth & Light•Some color’s travel deeper, due to shorter wavelength.•Violet gets scattered by water.
http://disc.sci.gsfc.nasa.gov/education-and-outreach/additional/science-focus/ocean-color/oceanblue.shtml
Depth & Light•How does that affect the organisms that live in the ocean?
Depth & Light
Depth & LightPROCEDURE:
•Grab the first 10 pieces you can see. (no feeling around!)•Record results.•Repeat for your partner.•Total your results.
Depth & Light• PROCEDURE: (copy the table)
red orange yellow green blue violet black
you
partner
total
Depth & LightRESULTS?•So what were the easiest colors to find?•Which colors were rarely picked up?
red orange yellow green blue violet black
you
partner
total
Time to show what you have learned.
What colors give animals in the jungle the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?image courtesy of http://commons.wikimedia.org/wiki/File:US_Woodland_pattern.png
What colors give animals in the desert the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
image courtesy of http://commons.wikimedia.org/wiki/File:Six-Color_Desert_Pattern.jpg
What colors give animals in the ocean the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
?
What colors give animals in the ocean the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
1) Design your own
camouflage pattern
What colors give animals in the ocean the best camouflage?
RED?
ORANGE?
YELLOW?
GREEN?
BLUE?
VIOLET?
BROWN?
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.
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