Popsicle Stick Catapult STEM Challenge

Popsicle Stick Catapult STEM Challenge (9‑Point Engineering Graph)

A hands‑on STEM challenge where learners build a simple popsicle stick catapult, test how far it can launch a soft object, and compare two trials using the 9‑Point Engineering Graph. Students sketch each design, record how they built their catapult, and observe how changes in the lever setup affect the launch distance. This activity is low‑prep, highly engaging, and ideal for primary classrooms, homeschool settings, STEM centres, or makerspace stations.

WHAT’S INCLUDED:
• 3‑page STEM Challenge set: Cover Page, Instructions Page, Activity Page
• Full 9‑Point Engineering Graph for comparing two catapult trials
• Clear, consistent directions designed for real classrooms
• Kid‑friendly layout that supports independent exploration
• Printable PDF (A4/Letter compatible)

TEACHER BENEFITS:
• Low‑prep activity using simple, affordable materials
• Consistent layout for easy classroom use
• Supports independent exploration and student‑led problem‑solving
• Flexible for whole‑class lessons, small‑group rotations, or STEM centres
• Ideal for quick engineering challenges or early finishers

LEARNING CONCEPTS:
• Engineering design process
• Planning, sketching, and comparing two designs
• Forces and motion (lever, load, effort)
• Testing and recording performance
• Early data collection and observation skills

HOW IT WORKS:
Students build a simple popsicle stick catapult, test how far it can launch a soft object, and record their results using the 9‑Point Engineering Graph. They sketch each design, note how they built their catapult, and compare how the launch distance changed between the two trials. The challenge naturally scales: younger learners build simple lever setups, while older learners create more stable, refined launchers.

PRINTING & PREP:
• Print pages single‑sided
• Provide simple materials such as popsicle sticks, rubber bands, spoons, and soft objects for testing
• Set up a clear space for building and launching
• Encourage students to sketch, label, and compare their two designs
• Adult supervision recommended for launching activities

AGE RANGE:
Suitable for ages 5–11 (Primary). Younger learners can participate with support.

PERFECT FOR:
• Classroom STEM centres
• Early finishers
• Makerspace stations
• Homeschool STEM time
• After‑school clubs
• Family STEM nights

FILE DETAILS:
• PDF format (non‑editable)
• Instant digital download
• No physical item shipped