Worksheet

Define Engineering Problems

Grade 3 - Science - Building Confidence

NameDate

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

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

  2. Why identify criteria before building?

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

  3. 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

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

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

  5. Which statement clearly defines an engineering problem?

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

  6. Which question helps define a problem?

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

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

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

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

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

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

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

  10. What should happen before choosing a solution?

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