Primary Popsicle Stick Catapult STEM Challenge

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

A simple Primary STEM challenge where learners build and test a popsicle stick catapult, compare two trials, and record results on a 9‑Point Engineering Graph.

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

SKILLS DEVELOPED:
• Engineering design process
• Planning and sketching designs
• Testing and comparing launch distance
• Understanding force, motion, and simple levers
• Recording results using a structured graph

HOW IT WORKS:
Learners build a simple popsicle stick catapult, test how far it launches a soft object, and record results on the 9‑Point Engineering Graph. After the first test, they change one part of the design—such as lever tension, spoon angle, or stick arrangement—and test again. They sketch both versions, note what changed, and compare how the launch distance improved. The challenge naturally scales for younger and older learners.

LEARNING CONCEPTS:
• Force and motion
• Simple levers (load, effort, fulcrum)
• Testing and comparing designs
• Recording results using a structured graph
• Improving designs based on test results
Curriculum Links: Supports early engineering, forces, motion, and simple investigations.
STEM Vocabulary: lever, force, motion, launch, distance, tension, design, test, improve
Differentiation: Works well for KS1 learners and naturally extends for KS2.

TEACHER BENEFITS:
• Clear, straightforward instructions
• Minimal prep with easy‑to‑source materials
• Suitable for small groups, centres, early finishers, or whole‑class use
• Flexible layout supports independent work

PRINTING & PREP:
• Print pages single‑sided
• Provide popsicle sticks, rubber bands, a spoon (optional), and soft objects
• Use an open space for testing
• Adult supervision required when launching objects

AGE RANGE:
Suitable for ages 5–11 (Primary). Younger learners can participate with support.
Aligned for KS1 learners, with natural extension options for KS2.
Supports ESL learners with simple language and clear layout.

PERFECT FOR:
• STEM centres
• Classroom STEM tubs
• Early finishers
• Makerspace stations
• Home learning
• After‑school clubs
• Family STEM nights

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

TERMS OF USE:
For personal and single‑classroom use only. Not for resale or redistribution.