Elenco Snap Circuits Explorer SC-EXP140 STEM Kit, 140 Projects

Build working circuits with snap-together parts

Explore electricity by building circuits that make lights, sounds and motor-driven movement. The Elenco Snap Circuits Explorer SC-EXP140 uses color-coded parts that snap onto a base grid, with printed and online instructions for 140 projects. Designed for ages 8 and up, this new boxed kit requires two AA batteries, sold separately.

Key Features

• Brand: Snap Circuits by Elenco Electronics
• Model / MPN: SC-EXP140
• Product Line: Explorer Series
• Projects: 140 hands-on electronics projects
• Components: 30+ color-coded snap-together parts including base grid, snap wires, switch, motor, glow-in-the-dark fan, alarm IC, Spacewar IC, and more
• What You'll Build: Flashing lights, alarms, sound effects, aerial flying disc stunts, and working electronic circuits
• Design: Reusable snap-together system with color-coded components
• Power: 2 × AA batteries required (not included)
• Age Rating: 8+ Years
• Condition: New in Box (NIB)
• Country of Origin: China
• Manufacturer: Elenco Electronics, LLC — Wheeling, IL 60090, USA

⚠️ WARNING: Choking Hazard — Small parts. Not for children under 3 years. Do not touch motor or fan during operation — moving parts.

What You Can Build — 140 Projects Include

The illustrated printed manual and additional online instructions guide young engineers through progressively challenging builds, including:

• 🔦 Flashing LED circuits — learn how electricity flows through a circuit
• 🔔 Alarm circuits — build a working alarm using the Alarm IC (U2)
• 🎮 Spacewar game circuit — powered by the Spacewar IC (U3)
• 🚀 Flying disc aerial stunts — motor-driven launcher sends a disc into the air
• 🔊 Sound effect generators — create buzzers, tones, and fun audio effects
• 🌀 Glow-in-the-dark fan — motor-powered spinning fan with glow effect
• ⚡ Series and parallel circuits — foundational electronics concepts made tangible
• Switch projects: Explore how a slide switch or press switch changes a circuit.

What's in the Box

• 30+ color-coded snap circuit components (base grid, snap wires, motor, switch, Alarm IC, Spacewar IC, glow-in-the-dark fan, and more)
• Full-color illustrated printed project manual, with additional project instructions available online
• Note: 2 × AA batteries required — not included.

Build with care

Follow the numbered diagrams in the manufacturer project manual, checking each connection before switching on. Adult supervision is required. Never connect the kit to a household electrical outlet or add another power supply. Do not leave a powered circuit unattended. Keep away from the moving fan and do not launch it toward people, animals or objects; eye protection is recommended. Use two 1.5V AA alkaline batteries and follow the battery warnings in the manual.