Dynamic Planet B/C

Test your knowledge of various Science Olympiad events.
UTF-8 U+6211 U+662F
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Re: Dynamic Planet B/C

Post by UTF-8 U+6211 U+662F »

k1208438 wrote: September 28th, 2020, 6:44 pm 1, What are semi-permeable membrane devices used for?
2,What landform was in place of the Bering Strait millions of years ago?
Haven't studied for this yet but...
1. Desalinizing seawater?
2. Bering land bridge?
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Re: Dynamic Planet B/C

Post by k1208438 »

Correct!
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Re: Dynamic Planet B/C

Post by UTF-8 U+6211 U+662F »

Again, I haven't studied for this yet, so I'm just gonna ask an easy one.

Image
1. What's this thing?
2. What is it used for?
3. Is this one used in freshwater or seawater? How can you tell?
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Re: Dynamic Planet B/C

Post by SilverBreeze »

UTF-8 U+6211 U+662F wrote: October 12th, 2020, 3:06 pm Again, I haven't studied for this yet, so I'm just gonna ask an easy one.

Image
1. What's this thing?
2. What is it used for?
3. Is this one used in freshwater or seawater? How can you tell?
1. Secchi disk
2. Measuring turbidity
3. Freshwater; has black and white quadrants (a marine one would be all white)
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Re: Dynamic Planet B/C

Post by UTF-8 U+6211 U+662F »

SilverBreeze wrote: October 12th, 2020, 9:42 pm
UTF-8 U+6211 U+662F wrote: October 12th, 2020, 3:06 pm Again, I haven't studied for this yet, so I'm just gonna ask an easy one.

Image
1. What's this thing?
2. What is it used for?
3. Is this one used in freshwater or seawater? How can you tell?
1. Secchi disk
2. Measuring turbidity
3. Freshwater; has black and white quadrants (a marine one would be all white)
Yep, your turn!
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Re: Dynamic Planet B/C

Post by SilverBreeze »

1. What's a tombolo?
2. Increased temperature leads to _______ levels of dissolved oxygen.
3. Underwater topography is ________.
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Re: Dynamic Planet B/C

Post by UTF-8 U+6211 U+662F »

SilverBreeze wrote: October 13th, 2020, 7:07 am 1. What's a tombolo?
2. Increased temperature leads to _______ levels of dissolved oxygen.
3. Underwater topography is ________.
1. A sandy isthmus
2. Lower
3. Analyzing the seafloor landscape by looking at its relative depths/heights, possibly using SONAR.
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Re: Dynamic Planet B/C

Post by SilverBreeze »

UTF-8 U+6211 U+662F wrote: October 13th, 2020, 8:50 am
SilverBreeze wrote: October 13th, 2020, 7:07 am 1. What's a tombolo?
2. Increased temperature leads to _______ levels of dissolved oxygen.
3. Underwater topography is ________.
1. A sandy isthmus
2. Lower
3. Analyzing the seafloor landscape by looking at its relative depths/heights, possibly using SONAR.
Correct!
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Re: Dynamic Planet B/C

Post by UTF-8 U+6211 U+662F »

Cool! Looks like I still remember some of this event from when I did it in middle school.

1. What does the THC stand for?
2. What is its movement driven by?
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Re: Dynamic Planet B/C

Post by kleinerPanzer »

UTF-8 U+6211 U+662F wrote: October 13th, 2020, 11:53 am Cool! Looks like I still remember some of this event from when I did it in middle school.

1. What does the THC stand for?
2. What is its movement driven by?
Thermohaline circulation. It's driven by the variations in density caused by temperature and salinity of seawater. Denser water (colder, more saline) will sink, while less dense (warmer, less saline) water will rise. In general, most of the water sinks near the poles and rises near the equator and mid-latitudes.
Last edited by kleinerPanzer on October 19th, 2020, 8:54 am, edited 1 time in total.
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