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Build and Test a Design
Grade 1 - Science - Challenge Me
Worksheet 1
1A bridge must hold 8 blocks. Which sentence states the design goal?
2Which order follows an engineering design process?
3The bridge goal is 6 blocks, but it held 5. What does the test show?
4A paper bridge bends in the middle. Which change best uses that evidence?
5What conclusion matches the bridge test graph?
6Which measurable success rule fits a bridge required to support 8 blocks?
7Which sequence moves from a stated need through evidence-based revision?
8Compare the 7-block result with the 8-block goal. What follows?
9Test evidence shows the bridge center is weak. What revision targets that failure?
10Which comparison is supported by the before-and-after bridge bars?
About this worksheet
Engineering in first grade is a thoughtful cycle, not simply making a craft. Children identify a problem, learn what a successful solution must do, choose materials, build a model, test it, and use the results to improve the design. This worksheet gives each step a clear purpose. Students distinguish a need from a preferred decoration, choose a test that matches the goal, read simple trial data, and decide what to change while keeping useful features. Support versions use one criterion, such as holding three blocks. Challenge versions add constraints such as using fewer pieces or surviving more trials. Sequence cards show the actual engineering actions rather than unrelated pictures. Children sometimes view a failed test as the end. Emphasize that a test result is information: it tells the designer where the model needs work. A fair retest uses the same success rule as the first test.
What your child will learn
State a design problem and success rule
Choose materials for useful properties
Test and record what happened
Improve one feature using evidence
Worked example
A bridge must hold four blocks. It holds two, so the test shows the design needs improvement. Adding support beneath the weak middle is an evidence-based change.
Common mistake
Changing the goal after a test instead of improving the model and testing it with the same criterion.
Helpful hint
Use the test result to decide what part should change.