Worksheet

Define Engineering Problems

Grade 3 - Science - On Level

NameDate

  1. Why identify criteria before building?

    • criteria replace testing
    • criteria erase the problem
    • criteria are random decorations
    • criteria show how to judge success

  2. Which statement clearly defines an engineering problem?

    • Design a cup holder that keeps a cup from tipping on a desk.
    • Students like water.
    • The desk is brown.
    • Cups exist.

  3. A bridge must hold 20 washers and use only paper and tape. What is the criterion?

    • look colorful
    • use only paper and tape
    • hold 20 washers
    • work during lunch

  4. Which question helps define a problem?

    • Can we skip testing?
    • Which color is prettiest?
    • Who can guess first?
    • What must the solution do?

  5. A bridge must hold 20 washers and use only paper and tape. What is the constraint?

    • hold 20 washers
    • carry more books
    • use only paper and tape
    • make any material

  6. A garden path floods after storms. Which need should the design address?

    • move or block extra water safely
    • ignore rain
    • change every flower color
    • make the path longer only

  7. Which evidence helps define a stronger problem statement?

    • the paper is white
    • the table is near a wall
    • the paper ramp bends when the toy car rolls over it
    • the room has a clock

  8. What should happen before choosing a solution?

    • ignore materials
    • define the problem, criteria, and constraints
    • pick a favorite without evidence
    • build without a goal

  9. Which is a constraint for a classroom tower challenge?

    • stand at least 30 cm tall
    • stay upright
    • use only 20 straws
    • hold a small flag

  10. Which is a criterion for a classroom tower challenge?

    • work on one desk
    • finish in 15 minutes
    • use only 20 straws
    • stand at least 30 cm tall
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