Rules Corrections
Submit a Question is now OPEN for the 2027 Season. Official Rules Clarifications/Corrections are made to clarify or correct the rules in the Science Olympiad Rules Manuals. Rules Clarifications are replies to commonly asked questions. If a response changes the meaning or corrects a rule it will be posted as an Offical Rules Correction. The Official Rules Corrections and Clarifications apply to all states and all tournaments and originate at the National level (please check your Regional or State Website for special updates pertaining to your regional or state events). Click here to view Event Clarifications or to Submit a Question. The official event rules can be found in the Science Olympiad Rules Manual free online; each registered member must join through their state Science Olympiad organization to participate.
2027 Science Olympiad Official Rules Corrections
Science Olympiad is issuing Rules Corrections for the following competitive events that should be applied to all competitions for the 2027 Season:
Anatomy and Physiology B (09/22/26)
This rule correction is to correct a minor grammatical error.
Original Rule 3.c.v. line 4
anaphylaxis,...
Corrected Rule 3.c.v. line 4
(anaphylaxis,...
Elastic Launched Glider B (09/22/26)
This rule correction is to correct an error about the duration of the Flight Period.
Original Rule 4.d.iv
iv. The Launch Handle will be collected and returned to the team at the start of their 10-minute Flight Period.
Corrected Rule Rule 4.d.iv
iv. The Launch Handle will be collected and returned to the team at the start of their 6-minute Flight Period.
Mission Possible C (09/22/26)
This rule correction is to correct a spelling error.
Original Rule 4.d. line 4
...x 0.5 ccm...
Corrected Rule 4.d. line 4
...x 0.5 cm...
Water Quality B (09/22/26)
This rule correction is to correct spelling errors in the list of organisms.
Original Rule 3.II.b.
i. (4) Fleshy Algae (Rhodophyta, Chlorophyta, Phaephyta),
i. (11) Pencil Urchins (Eucidairis spp.),
iii. (2) Gorgonia (Octocorrallia),
Corrected Rule 3.II.b.
i. (4) Fleshy Algae (Rhodophyta, Chlorophyta, Phaeophyta),
i. (11) Pencil Urchins (Eucidaris spp.),
iii. (2) Gorgonia (Octocorallia),
Water Quality C (09/22/26)
This rule correction is to correct spelling errors in the list of organisms.
Original Rule 3.II.b.
i. (4) Fleshy Algae (Rhodophyta, Chlorophyta, Phaephyta),
i. (11) Pencil Urchins (Eucidairis spp.),
iii. (2) Gorgonia (Octocorrallia),
Corrected Rule 3.II.b.
i. (4) Fleshy Algae (Rhodophyta, Chlorophyta, Phaeophyta),
i. (11) Pencil Urchins (Eucidaris spp.),
iii. (2) Gorgonia (Octocorallia),
Junkyard Challenge C (09/22/26)
This rule correction is to correct a spelling error.
Original Rule 5.a.v.(2).
(2) Predicted Mass: The mass of the Test Mass in grams as cited by the students.
Corrected Rule 5.a.v.(2).
(2) Measured Mass: The mass of the Test Mass in grams as cited by the students.
Junkyard Challenge C (09/22/26)
This rule correction is to add in a formula missing from the rules.
Original Rule 5.b.v.(5).
(5) Tiers 1 and 3: Ranked by the results of the following formula.
Corrected Rule 5.b.v.(5).
(5) Tiers 1 and 3: Ranked by the results of the following formula:
