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3rd Grade Define Engineering Problems worksheets

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Define Engineering Problems

Grade 3 Science Worksheet - Building Confidence

NameDate

Circle the answer.

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

    • use only paper and tape
    • be built by Friday
    • hold 20 washers
  2. A bridge must hold 20 washers and use only paper and tape. What is the constraint, the limit?

    • use only paper and tape
    • stay flat when loaded
    • hold 20 washers
  3. Which sentence names an engineering problem?

    • Our classroom has twenty desks.
    • Students need a way to keep cups from tipping on desks.
    • Cups come in many colors.
  4. Students get too hot in the sun at recess. What problem should a design solve?

    • making recess longer
    • giving students more swings
    • keeping students cool at recess
  5. Which is a constraint for a classroom tower challenge?

    • hold a small flag
    • stand at least 30 cm tall
    • use only 20 straws
  6. Which is a criterion for a classroom tower challenge?

    • stand at least 30 cm tall
    • use only 20 straws
    • be built in 15 minutes
  7. A garden path floods after storms. Which need should the design address?

    • move extra water away from the path
    • make the path longer
    • add more stones in the low spot
  8. An umbrella stand must hold an umbrella upright without tipping. What need does it solve?

    • making an umbrella open faster
    • keeping an umbrella from falling over
    • keeping an umbrella dry inside
  9. A greenhouse must keep plants warmer than the outside air in winter. What problem does it solve?

    • making plants grow without soil
    • protecting plants from the cold
    • keeping plants from needing water
  10. A backpack strap keeps hurting a student's shoulder. Which need should a new strap design address?

    • spread the weight so it does not hurt
    • make the zipper bigger
    • fit more books inside
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3rd Grade Define Engineering Problems worksheet 1 – printable PDF
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About this worksheet

Defining engineering problems helps third graders connect observations with scientific explanations instead of memorizing isolated facts. Students may mix up criteria (goals) and constraints (limits), or accept a design that meets one need but breaks another. This worksheet uses short evidence-based situations so students must read the setup, identify the pattern, and choose the answer that fits the science idea named in the title. Students name the need, sort criteria from constraints, check measurements against limits, and decide whether a design solves the whole problem.

Support versions use familiar examples and direct wording. Standard and challenge versions add closer distractors and require more comparison. Encourage your child to point to the evidence in the prompt before choosing an answer. If the answer does not explain the observation or solve the stated problem, it is probably a distractor. That habit builds careful science reasoning and prepares students for longer investigations.

What your child will learn

  • Name the need
  • Tell criteria from constraints
  • Check measurements against limits
  • Decide whether a design solves the problem

NGSS standard: 3-5-ETS1-1

Worked example

A bridge must hold 20 washers (criterion) using only paper and tape (constraint). A bridge that holds 25 washers but uses glue does not solve the problem.

Common mistake

Accepting a design because it meets one goal while it breaks a limit.

Helpful hint

Check every goal and every limit.

Questions parents ask

What is the most common mistake with define engineering problems?

Accepting a design because it meets one goal while it breaks a limit.

How can I help my child with define engineering problems?

Check every goal and every limit.

Are these 3rd grade science worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

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