(section: 3 / paragraph: a / line: 2-4)
No, supervisors do not have to ensure there is a valid entry for each letter/category combination. Yes, a grid may be created where one cell doesn't have a known valid answer.
(section: 3 / paragraph: b / line: 1)
It depends on how the category is phrased. If it does not specifically ask for scientific name then either are correct. Rule 3.g prevents students from using different forms of the same term apply. So if the letters in the grid were "f" and "i" the student would only get credit for either flu or influenza, but not both.
(section: 3 / paragraph: H / line: 1)
No, per section 3.h. "If the category asks for the name of a person, both the given (first) and surname (last) of a person must be written. Archimedes' full name is Archimedes of Syracuse and Galileo's full name is Galileo Galilei.
(section: 3 / paragraph: i / line: 4-5)
It depends on the description of the category. If the category was "name of element" then the atomic symbol could not be used. If it was "nuclear (atomic) symbol" then the name could not be used. However, if the category was "element" or "chemical element" the student could use either the name of the element or the nuclear (atomic) symbol. Please note that if the category was "name of chemical compound" and the letters were "N" and "S" the student could not use "NaCl" and "sodium chloride" as both terms are different forms for the same substance. (rule 3.g)
(section: 3 / paragraph: N/A / sub-paragraph: N/A / line: N/A )
It depends on the category description. If it said "Invasive Species" then either the common or scientific name would be acceptable. Please note if the answer has more than one word, the first letter of the 1st word is used (rule 3.f). Rule 3.g. also allows students to get credit for only one form of a response.
(section: 3 / paragraph: b. / sub-paragraph: iv. / line: 2)
Students should be familiar with all three. If used for the National competition the national supervisor will specify which is being used. We have chosen to define the Simpson index, p as the proportion (n/N) of individuals of one particular species found (n) divided by the total number of individuals found (N), Σ is still the sum of the calculations, and s is the number of species. This information can be found on the files distributed at coaches clinics and will also be on the SO website once the clinics are over.
(section: 3 / paragraph: a / line: 2)
Definition of seed. : a small object produced by a plant from which a new plant can grow This requires the knowledge that NO part of the fruit may be used because over time it can become rotten and students should not be exposed or working with this part in any capacity. Therefore, it is truly the smallest component from which a new plant can grow.
(section: 1 / line: 1)
Commercial kits may be used, as long as the SO building policy is followed: https://www.soinc.org/building_tools_policy
(section: 2, 3 / paragraph: 5, 6 / sub-paragraph: f, b / line: 1,1)
5.f. doesn't identify the target time for C only. It only mentions that the target length will be announced for Div. C only (since Div. B already knows the target length). The target time concept applies to both B and C. The reference to Div C is for the variable length that must be announced.
(section: 4 / paragraph: b / line: 1-2)
The maximum dimension of the skirt is the same as the device, 19.5 cm wide x 30 cm long, both inflated and deflated. Students may tuck the uninflated skirt under the device prior to inflation.
(section: 4 / paragraph: e / line: 1)
The propeller(s) must be enclosed in such a way that there are no holes bigger than 1/4" in diameter in the enclosure. A 1/4" dowel rod must not be able to penetrate the material.
(section: 4 / paragraph: g / line: 1)
The dowel can be any material, but by definition a dowel is a solid cylindrical rod, hence a straw is not allowed.
(section: 4 / paragraph: h / line: 1)
Yes, this would be allowed.
Yes, multiple batteries may be used as long as they are not connected in such a way that the voltage exceeds 9 V in any circuit. Separate 9 V circuits are allowed.
(section: 4 / paragraph: i / line: 1)
No. A breadboard with discrete resistors and/or basic transformers is not an integrated circuit. Note though that some types of resistors and transformers ARE integrated circuits and hence are not allowed.
No. As long as it is a fan typically used for cooling electronics or computers it does not need to be labeled as such.
Yes, an Arduino contains many integrated circuits and is not legal.
(section: 4 / paragraph: i / sub-paragraph: n/a / line: 1)
An integrated circuit is a circuit in which all or some of the circuit elements are inseparably associated and electrically interconnected so that it is considered to be indivisible for the purposes of construction and commerce. Most resistors and capacitors are not integrated circuits. Nearly all transistors and op-amps are integrated circuits.
(section: 4 / paragraph: i / sub-paragraph: N/A / line: 1)
It depends on the specific switch. Some switches are purely mechanical (i.e. utilize a potentiometer) and are allowed. Others are digital (i.e. utilize an integrated circuit) and are not allowed.
(section: 4 / paragraph: j / line: 1)
Yes because it is not hovering unless air is coming out. The air must have some way of escaping (i.e. it should need to be actively replenished for the device to work, not just be a sealed inflatable chamber).
(section: 4 / paragraph: j / line: 4)
There is no set distance it must hover. If an event supervisor, from a normal observation point without having to get up and close to the hovercraft, can visually see it move down when pushed, then yes it levitates.
(section: 4 / paragraph: k / line: 1)
No, as any remote control system would violate either the dimension requirements or the prohibition on integrated circuits.
(section: 5 / paragraph: f / sub-paragraph: N/A / line: 1)
(section: Constr / paragraph: i / line: 1)
Note there is an official rules clarification related to this, available at: https://www.soinc.org/official_rules_clarif The integrated circuit prohibition refers to all components (including voltage regulators / arduinos) other than those specified in the rules clarification.
(section: 4 / paragraph: d / sub-paragraph: ii / line: 1)
The pulley must lift an object at least 10.0 cm. The vertical distance is measured at a 90 degree angle and must be at least 10.0 cm. The object does not have to travel at a 90 degree angle but overall must rise 10.0 cm vertically above where it started before the object initiates the next action.
(section: 4 / paragraph: d / sub-paragraph: iii / line: 2)
An inclined plane must be used to raise an object at least 10.0 cm vertically. The vertical distance is measured at a 90 degree angle and must be at least 10.0 cm. The object does not have to travel at a 90 degree angle but overall must rise 10.0 cm vertically above where it started before the object initiates the next action.
(section: 4 / paragraph: d / sub-paragraph: vi / line: 2)
The Wheel & Axle must lift an object at least 10.0 cm vertically. The vertical distance is measured at a 90 degree angle and must be at least 10.0 cm. The object does not have to travel at a 90 degree angle but overall must rise 10.0 cm vertically above where it started before the object initiates the next action.
(section: 5 / paragraph: b / sub-paragraph: v / line: 1)
The Load Scored Bonus is awarded only if the tower is outside of the 29.0 cm diameter circle through the entire testing. If the tower sags inside of the 29.0 cm circle during testing but the bucket remains off the ground and the tower is still outside the 20.0 x 20.0 cm opening on the Test Base, testing will continue until failure occurs as defined in the rules.