This Grade 3 engineering worksheet digs into constraints and criteria, two key design ideas in NGSS 3-5-ETS1. Students practice with nine fill-in items and a matching task that connects each step of the design cycle to real engineering actions like sketching, building, and testing. Grade 3 learners leave with a clearer sense of how limits and success rules shape every good design.
Style:
Engineering Design Process
Part A: Fill in the Blank
Write the missing word or number on each line.
1. A constraint is a limit on a design, like time or materials.
2. The rules for success in a design are called the criteria.
3. If a bridge must hold 10 blocks, that rule is a criterion.
4. Using only 20 straws is a material constraint for the design.
5. Engineers draw a sketch of the design before building.
6. A working test model of a design is called a prototype.
7. Grade 3 scientists test their prototype to see if it works.
8. If the design fails, engineers improve it and try again.
9. Repeating the design cycle to make a better design is called iteration.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Ask step
→ Write down what the problem is
Draw a sketch of the design
Plan step
→ Draw a sketch of the design
Change the design after testing
Create step
→ Build the prototype
Build the prototype
Improve step
→ Change the design after testing
Write down what the problem is
Engineering Design Process
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) A constraint is a limit on a design, like time or materials.
2) The rules for success in a design are called the criteria.
3) If a bridge must hold 10 blocks, that rule is a criterion.
4) Using only 20 straws is a material constraint for the design.
5) Engineers draw a sketch of the design before building.
6) A working test model of a design is called a prototype.
7) Grade 3 scientists test their prototype to see if it works.
8) If the design fails, engineers improve it and try again.
9) Repeating the design cycle to make a better design is called iteration.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
Ask step
→ Write down what the problem is
Draw a sketch of the design
Plan step
→ Draw a sketch of the design
Change the design after testing
Create step
→ Build the prototype
Build the prototype
Improve step
→ Change the design after testing
Write down what the problem is
Ready to Practice?
Complete each section carefully.
10 Questions
10-15 minutes
Auto-graded
Retry anytime
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