Description
What are STEM Science Kits ?
The StemWizz Wooden Scales – Balance & Torque Kit lets young people build a working balance scale and then experiment with mass, torque and leverage. It’s a simple, durable and affordable entry in our STEM and Science Kits range, designed for genuine inquiry: ask a question, test, record, conclude.
What they learn
-
Torque & Leverage: How arm length and pivot position change balance.
-
Mass & Weight: Compare known and unknown masses with real outcomes.
-
Fair Tests: Variables, repeats, data tables and simple graphing.
-
Engineering Habits: Planning, assembling, troubleshooting, improving.
What’s in the box
-
Laser-cut wooden frame & beam
-
Two balance pans/plates with hanging cords
-
Fulcrum/pivot components
-
String set & spare fixings
-
Starter calibration cards (printable weights & tasks)
-
Illustrated build guide
Optional add-ons: metal weight set; classroom pack of 10; digital sensor add-on (load-cell) for advanced classes.
Quick build, big learning
Assemble the frame, hang the pans, and start exploring. Try “How many paperclips equal one coin?” or “Does doubling arm length halve the required mass?” The kit is robust for classroom rotation but compact enough for home use.
Who it’s for
-
Primary & early post-primary physics/STEAM blocks
-
Homeschool families seeking practical science
-
Clubs & camps needing quick, repeatable experiments
-
Maker classrooms introducing measurement & mechanics
Classroom ideas
-
Equal vs unequal arms: Slide the pivot and measure the effect.
-
Mystery mass challenge: Balance unknown objects using knowns.
-
Friction check: Does the pivot design change sensitivity?
-
Data & graphs: Record mass on each side vs arm length; plot simple relationships.
Advantages of STEM Science Kits By StemWizz
-
🧪 Real science, real results — explore mass, torque & leverage with a working balance scale.
-
🪵 Premium wooden build — durable laser-cut parts designed for repeat classroom use.
-
📘 Clear instructions — step-by-step guide plus printable experiment cards.
-
🧩 Modular learning — add optional weights, classroom packs & digital sensor later.
-
🎯 Aligned to STEM — perfect for STEM and Science Kits goals (inquiry, data, iteration).
Specifications
-
Difficulty: Beginner (guided)
-
Build Time: 30–45 minutes
-
Age Guidance: 6+ with supervision
-
Materials: Birch/bamboo plywood, cord, plastic/wood pans
-
Assembled Size (approx.): 22–26 cm (H) × 20–24 cm (W)
-
Weight: ~180–250 g (kit)
-
Manual: Included with Picture & Written Instructions
Learning outcomes STEM Science Kits (curriculum-style)
-
Identify forces acting on a lever and relate moment (torque) to arm length × force.
-
Conduct a fair test, control variables, and record data in tables.
-
Use non-standard and standard units to compare mass.
-
Communicate findings with charts and simple conclusions.
FAQs
Do I need extra weights?
No. You can start with household items (paperclips, beans, coins). For precise work, add our weight set.
How sensitive is the scale?
Sensitivity depends on the pivot and load. Tips and tweaks are included to improve responsiveness.
Is it reusable?
Yes — designed for repeated classroom cycles with spare cord and simple maintenance.
Can younger children use it?
Yes, with adult help. It’s an ideal family project for early STEM Science Kits exploration.
-
Explore more STEM and Science Kits
-
Pair with StemWizz Wooden Train (motion/forces)
-
Pair with Hydraulic JCB (mechanical advantage)
Or Find out more:
Products related to this item
-
Magnetic Screwdriver
Price range: € 0.99 through € 3.49
-
AA Batteries
Price range: € 3.99 through € 5.99
-
Magnetic Screwdriver
Price range: € 0.99 through € 3.49 -
AA Batteries
Price range: € 3.99 through € 5.99
