Core Skills Analysis
Science
Harry built a catapult from popsicle sticks and used it to investigate how different materials traveled when launched. By testing the materials and comparing their distances, Harry explored cause and effect and used evidence from an experiment to identify which traveled farthest. Recording the findings helped Harry document observations and compare results.
Engineering and Design
Harry assembled popsicle sticks into a working catapult, applying basic construction and mechanical-design skills. The launcher turned stored force into motion, giving Harry a hands-on opportunity to see how a simple device could launch objects. Testing different materials connected the catapult’s design to the performance of what it launched.
Math
Harry compared how far different materials traveled and recorded the findings, practicing measurement-related reasoning and data organization. The results offered a way to rank materials by distance and make comparisons based on evidence. This activity also connected a real-world test with the use of recorded data to support a conclusion.
Tips
Tips Extend the investigation by having Harry predict which material will travel farthest before each round, then compare the prediction with the recorded result. Repeat launches under consistent conditions and measure each distance with a ruler or tape measure, recording several trials in a simple table. Invite Harry to create a labeled diagram of the catapult and explain how it launches an object. To connect the experiment with everyday design, look at pictures of other launching devices and discuss how their shapes and moving parts compare.
Book Recommendations
- Rosie Revere, Engineer by Andrea Beaty: A picture book about a young inventor who learns through designing, building, and revising creations.
- Ada Twist, Scientist by Andrea Beaty: A story that celebrates asking questions, making observations, and investigating how the world works.
- The Most Magnificent Thing by Ashley Spires: A child builds and improves an invention, offering a relatable connection to hands-on design and testing.
Try This Next
- Create a results table with columns for material, launch distance, and farthest-traveling material.
- Draw and label the popsicle-stick catapult, showing where the launched material rests.
- Write a prediction before testing: Which material will travel farthest, and what makes you think so?