Compare Engineering Solutions
Grade 5 - Science - Building Confidence
NameDate
Which criterion should guide solutions for helping bikes stay upright at the park?
- lowers noise while staying within budget
- holds 2 kilograms using limited materials
- removes the most visible particles in under two minutes
- holds ten bikes securely in wind
Which evidence is a strength of the coffee filter?
- catches fine soil particles
- spreads force through the frame
- raises soil temperature quickly
- holds many books securely
Which tradeoff should engineers consider for the soft wall panels?
- it has no constraints at all
- absorbs echoes
- costs more to install
- costs less and guides traffic
Which final design best uses evidence for keeping a model bridge from bending?
- use a removable clear cover and vent it at midday
- pour through mesh first, then a coffee filter
- combine panels near classroom doors with simple route signs
- add triangle braces under a thin deck
Why compare thicker deck and triangle braces before choosing?
- criteria should be ignored
- tests cannot improve designs
- the first idea is always best
- each solution may meet the criteria in different ways
Which criterion should guide solutions for moving library books without dropping them?
- keeps seedlings between 15 and 25 degrees Celsius
- holds ten bikes securely in wind
- removes the most visible particles in under two minutes
- moves 40 books with no drops and easy steering
Which evidence is a strength of the thicker deck?
- costs less and guides traffic
- protects seedlings without trapping as much heat
- adds support under the load
- holds each wheel in place
Which tradeoff should engineers consider for the coffee filter?
- catches fine soil particles
- water passes through slowly
- filters quickly
- it has no constraints at all
Which final design best uses evidence for moving library books without dropping them?
- use slot racks with a wider base
- use a rolling bin with smaller sections and swivel wheels
- pour through mesh first, then a coffee filter
- add triangle braces under a thin deck
Why compare single rail rack and slot rack before choosing?
- criteria should be ignored
- tests cannot improve designs
- the first idea is always best
- each solution may meet the criteria in different ways