Grade 3 · Science
Use a design’s purpose and limits
Loading quiz…
Example & extra help
Try a sample
A class designs a ramp. It must roll a toy car into a marked area and stay inside a tray. Which test checks both requirements?
- Make the ramp extend off the tray.
- Ignore where the car stops.
- Judge only the ramp’s name.
- Reach the marked area with the ramp inside the tray.
See the answer & why
Reach the marked area with the ramp inside the tray.
The test checks the desired result and the stated limit together.
A little hint: A successful design must meet its purpose and its limits.
A criterion tells what success looks like; a constraint limits materials, size, cost or time.
All questions