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3rd Grade Define Engineering Problems worksheets

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Define Engineering Problems

Grade 3 Science Worksheet

NameDate

Circle the answer.

  1. A pencil holder must be no wider than 6 inches. This one is 6 inches wide. Does it meet the size limit?

    • no, because it must be smaller than 6 inches
    • no, because it is exactly 6 inches wide
    • yes, because it is not wider than 6 inches
    • yes, because it holds many pencils
  2. A birdhouse hole must be no more than 4 cm across, so squirrels cannot get in. This hole is 6 cm across. Does it meet the rule?

    • no, because 6 cm is larger than the 4 cm limit
    • yes, because bigger holes let more birds in
    • no, because the hole is too small
    • yes, because 6 cm is close to 4 cm
  3. A kite challenge allows one sheet of paper and one stick. A student's kite uses two sheets and three sticks, and it flies steadily. Does it meet the requirements?

    • no, because it flies too low
    • no, because it uses more materials than allowed
    • yes, because it flies steadily
    • yes, because extra sticks make it stronger
  4. A rule says a ramp may rise no more than 1 inch for every 12 inches of length. A ramp rises 1 inch for every 6 inches. Does it meet the rule?

    • yes, because it still reaches the door
    • yes, because it rises only 1 inch at a time
    • no, because it is steeper than the rule allows
    • no, because it is too flat
  5. A ramp must send a marble at least 50 cm. In a test, the marble went 65 cm. Does the ramp meet the goal?

    • no, because 65 cm is too far
    • yes, because 65 cm is farther than 50 cm
    • yes, because the ramp is tall
    • no, because it must be exactly 50 cm
  6. A paper airplane flies 2 meters, but the goal is 5 meters. What should the student do next?

    • change the goal to 2 meters
    • throw it the same way ten more times
    • stop testing, since 2 meters is close
    • redesign the plane and test it again
  7. A parachute must make a toy fall slowly. Which test result shows the parachute works?

    • the toy lands upside down
    • the toy falls at the same speed either way
    • the toy falls slower with the parachute than without it
    • the parachute is the biggest in the class
  8. A rain gutter must carry water away from a doorway. Which observation shows it is not working?

    • the gutter is 10 feet long
    • the gutter is made of metal
    • water pools at the doorway during rain
    • water flows away from the doorway
  9. A foil boat must hold 10 pennies and use only one sheet of foil. Which is the constraint?

    • use only one sheet of foil
    • stay dry inside
    • hold 10 pennies
    • float for one minute
  10. Why should a class list the criteria before building a solution?

    • criteria are the materials allowed
    • criteria show how to judge if the design works
    • criteria replace testing
    • criteria are added after building
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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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