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Does anyone know how the team numbering system works for States? Like, which regions winners get which states team numbers?

New to this event and just want a tiny clarification on the wording from the rules. "The Testing Wall must have three mounting holes for 1/4" bolts, horizontally aligned....and the center of the other holes placed 10.0cm from the center of the middle hole... 3 sets of bolts must be provide...

Thanks! Another question, sorry about being so spam-ish Is there a difference between a deer fly and a horse fly? The rules say deer/horse fly, does it mean there is a distinction between them or just different names for the same thing? This might help you http://ohioline.osu.edu/hyg-fact/2000/2115...

Does anyone know if there is a specific increment of percentage that we need to be to measure to with the salinometer? Note: At Nationals, the saltwater solution (most likely NaCl) will be made by adding salt to a volume of water until a predetermined total volume is reached (e.g., a 6.5% solution ...

Does anyone know if there is a specific increment of percentage that we need to be to measure to with the salinometer?

For the classic straw+clay salinometer, isn't that based on the buoyancy? So if the beaker sized was different at competition vs at home when we calibrated it, wouldn't that affect the accuracy of our salinometer? Remember, you can bring your own beaker, if you want. To be honest, while there is a ...

For the classic straw+clay salinometer, isn't that based on the buoyancy? So if the beaker sized was different at competition vs at home when we calibrated it, wouldn't that affect the accuracy of our salinometer?

Does anyone have any good tests or know where to find a good test that has both periodicity and electrochemistry? I've checked the SciOly test exchange, and none of the tests there are both periodicity and electrochem. Thanks in advance

@dracomander: on test I've seen, it's only been electron affinity as a negative value...that's just me though

@everyone: why do transition metals form colored compounds?

Thanks!

@Fellow new yorkers, is there a good way to tell Scarlet Oak and Pin Oak apart by their leaves and/or acorns?

Generally Scarlet oak seems to have more "lobes", but sometimes Pin Oak can have the same number as scarlet oak.