STEM Challenge 2021-2022

Can we use any size of toothpick?

by on Nov.10, 2021, under Uncategorized

No.  Toothpicks used should only be the standard size found in most store boxes (each roughly 2 1/2 inches long) – see Slide 4.

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Can our bridge be supported from below the ‘span’ with the desk supports or any other types of supports?

by on Nov.08, 2021, under Uncategorized

No.  Any type of support system below the bridge span is not allowed.  This includes using the span supports (such as desk legs) or any other support structure built below the bridge – these are NOT allowed.  Bridges may extend up to one inch below the “span line” – the level line between the two supports. No part of the bridge may touch any part of the support (or anything else), except the top when beginning the test.

See Slide 5 in Google Slide Rules for a diagram.

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Can we use Gorilla wood glue?

by on Nov.05, 2021, under Uncategorized

Yes.  Only Elmer’s (school) glue and wood glue may be used.   Gorilla ‘Wood Glue’ is a separate type of glue than normal ‘Gorilla’ glue, and so Gorilla wood glue is allowed.  Different wood glue brands are allowed, but take note of Slide 4 stating that regular Gorilla glue, hot glue, rubber cement, super glue, epoxy, etc. are all NOT allowed.  The ‘etc.’ means ANY other type of glue besides regular school Elmer’s Glue or a brand of wood glue are not allowed.

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Can we add paint on our bridge at the end, before testing?

by on Nov.05, 2021, under Uncategorized

No.  Paint of any type is not allowed on the bridge.  See Slide 4.

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Welcome to the 2021-22 STEM Challenge Q&A Blog!

by on Oct.20, 2021, under Uncategorized

This is a place you can post questions related to this year’s ‘STEM Challenge’!  We’ll try to answer your question within a short period of time.  Good luck with your bridge designs! 🙂

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