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Lesson 16 of 84 · Scientific Models
ExperimentEngineering Constraints and Criteria
What You'll Learn
Engineers must consider constraints (limitations like cost, time, and materials) and criteria (requirements the solution must meet) when designing solutions to problems.
Key Words
- design
- constraint
Materials Needed
- ruler
- markers
- popsicle sticks
Safety First
- Tie back long hair before starting the experiment.
- Protect your work surface with newspaper or plastic.
Steps
Step 1 — Read
Read about Scientific Models and write down three key facts.
Step 2 — Do
Conduct a design challenge: build a car powered only by a balloon. Measure how far it travels and iterate on your design at least twice.
Step 3 — Observe
Watch carefully for any changes and note the time.
Step 4 — Record
Create a data table to organize your measurements.
Check Your Understanding
Question 1
1 of 3What is peer review?