240 PCS Chemistry Molecular Model Kit for STEM Science Education Lab Gift
240 PCS Chemistry Molecular Model Kit for STEM Science Education Lab Gift
About this item
- 【Comprehensive 240-Piece Set for 3D Visualization】Bring complex chemical concepts to life! This deluxe molecular model kit includes 86 atoms and 153 bonds, allowing students and teachers to build over 40 organic and inorganic structures. Perfect for visualizing molecular geometry, bond angles, and 3D spatial arrangements, making it an essential STEM science education tool for classroom demonstrations or science labs.
- 【Dual Modeling: Ball-and-Stick & Space-Filling】Master organic chemistry with versatility. Our kit supports both Ball-and-Stick models to show geometric structure and Space-Filling models (using 60 short bonds) to simulate actual atomic volume. Whether you are studying covalent bonds, double/triple bonds, or complex functional groups, this kit provides a hands-on learning experience for high school and university students.
- 【Size-Coded Atoms for Instant Identification】Designed for intuitive learning and quick recognition. Atoms are color-coded to international standards and feature two distinct sizes: larger 23mm spheres for most elements and smaller 17mm spheres specifically for Hydrogen. This visual and tactile differentiation helps beginners and college prep students distinguish elements instantly while building large molecular structures.
- 【Secure Connections & Effortless Disassembly】Built for durability and ease of use. The flexible bonds create strong, secure connections that won’t fall apart during group activities, yet remain easy to assemble. We include a specialized Bond Remover Tool to solve the common pain point of removing short bonds in space-filling models, protecting students’ fingers and ensuring components last through years of homeschool or classroom use.
- 【Sturdy ABS Storage Box for Ultimate Portability】Never lose a piece again! All 240 components are housed in a heavy-duty, 4-compartment ABS plastic storage case with a secure lid. This compact and portable design keeps atoms and connectors neatly organized, making it the perfect chemistry study set for students to carry between home and school, or for teachers to store in busy science departments.
Couldn't load pickup availability
Low stock: 10 left
View full details

Reviews
-
⭐⭐⭐⭐⭐
Hannah Miller — Seattle, Washington
I ordered several science activity supplies for projects at home. The product descriptions made it easier to compare the available options, and everything fit neatly into our learning space. Stemora made finding tools for hands-on activities feel simple and organized. -
⭐⭐⭐⭐⭐
Daniel Foster — Austin, Texas
I found a useful selection of electronics and robotics accessories for a beginner project. It was convenient to browse related components in clearly organized categories. I would consider shopping here again when planning another maker activity. -
⭐⭐⭐⭐⭐
Lauren Bennett — Denver, Colorado
The measurement and observation tools I selected worked well for the classroom activities I had planned. I especially appreciated being able to review the product details before ordering and choose items that matched the lesson requirements. -
⭐⭐⭐⭐⭐
Jason Parker — Portland, Oregon
I purchased a few storage items and small tools for organizing my maker workspace. The products helped keep components, wires, and project materials easier to sort and access. The overall shopping experience was straightforward and convenient.
New Arrivals
-
MOOKEERF RG8X N Male to SMA Male Cable 12FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 12FT
Regular price $36.50 USDRegular priceSale price $36.50 USD -
5PCS Silicone Socks for X-Plus 3, 3D Printer High Temperature Resistance Hotend Nozzle Silicone Socks Cover for Qidi X-Smart 3/X-Plus 3/X-Max 3 - style: X-Plus 3
Regular price $13.26 USDRegular priceSale price $13.26 USD -
MOOKEERF RG8X N Male to SMA Male Cable 10FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 10FT
Regular price $34.84 USDRegular priceSale price $34.84 USD -
4Pcs Glass Stir Sticks Lab Stirring Rod 8"x 2 10"x 2 with Both Ends Round and 2Pcs Glass Graduated Droppers 4"x 2 for Science, Lab, Kitchen, Science Education
Regular price $11.60 USDRegular priceSale price $11.60 USD -
EEEEE (20 Types) 301 pcs Long Lead 5mm LED kit and LED diode Lights Emitting Diode LED Assortment Kit for Tiny Small led and Single led Light 5mm WS2812 RGB Flash Dual Color tri Color
Regular price $24.88 USDRegular priceSale price $24.88 USD -
MOOKEERF RG8X N Male to SMA Male Cable 6FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 6FT
Regular price $31.52 USDRegular priceSale price $31.52 USD -
5PCS Silicone Socks for Kobra 3 Max, 3D Printer High Temperature Resistance Hotend Nozzle Silicone Socks Cover for Anycubic Kobra 3 Max Combo - style: Kobra 3 Max
Regular price $13.26 USDRegular priceSale price $13.26 USD -
MOOKEERF RG8X N Male to SMA Male Cable 5FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 5FT
Regular price $29.86 USDRegular priceSale price $29.86 USD -
5PCS Silicone Socks for K2 Plus, 3D Printer High Temperature Resistance Hotend Nozzle Silicone Socks Cover for Creality Hi, K2 Plus - style: K2 Plus
Regular price $13.26 USDRegular priceSale price $13.26 USD -
Lounsweer 5 Sets Bike Ball Bearing Kit Headset Retainer Crank Caged Wheels
Regular price $26.54 USDRegular priceSale price $26.54 USD -
MOOKEERF RG8X N Male to SMA Male Cable 4FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 4FT
Regular price $28.20 USDRegular priceSale price $28.20 USD -
Sedgwick-Rafter Plankton Counting Chamber Testing Equipment (1ml 40Grid) - size: 1ml 40Grid
Regular price $81.34 USDRegular priceSale price $81.34 USD -
5PCS Silicone Socks for H2D, H2S, 3D Printer High Temperature Resistance Hotend Nozzle Silicone Socks Cover for Bambu Lab H2D/H2S - style: H2D
Regular price $13.26 USDRegular priceSale price $13.26 USD -
MOOKEERF RG8X N Male to SMA Male Cable 3FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 3FT
Regular price $26.54 USDRegular priceSale price $26.54 USD -
MOOKEERF RG8X N Male to SMA Male Cable 25FT,Ultra Low Loss RG8X Stranded Core SMA to N Cable 50 ohm for WiFi Router,GPS Receiver,Antenna,Signal Booster Use - size: 25FT
Regular price $53.10 USDRegular priceSale price $53.10 USD -
Digital Kitchen Scale Rechargeable, 5kg/11lb Food Bakery Scale with Percentage Function, Tare Function - color: Grey
Regular price $24.88 USDRegular priceSale price $24.88 USD -
Sedgwick-Rafter Plankton Counting Chamber, Microscope Slide for Phytoplankton/Zooplankton Analysis, Laboratory Water Quality Testing Equipment (0.5ml 250Grid) - size: 0.5ml 250Grid
Regular price $81.34 USDRegular priceSale price $81.34 USD -
5PCS Silicone Socks for K1 Series, 3D Printer Parts High Temperature and Wear Resistance Hotend Nozzle Silicone Cover Socks for K1, K1 Max, K1C, Ender 3 V3/KE/Plus, Quick Swap Hotend - style: K1 Series
Regular price $13.26 USDRegular priceSale price $13.26 USD
FAQ
What types of products does Stemora offer?
Stemora offers supplies for science experiments, microscopy, biology learning, measurement, laboratory organization, electronics, robotics, coding education, 3D printing, maker projects, and classroom activities. Available products and specifications may change over time.
Are Stemora products suitable for children?
Recommended ages vary by product. Please review the product description, manufacturer guidance, included warnings, and required skill level before purchasing. Products containing small parts, tools, electrical components, glass, or chemicals may not be suitable for young children.
Is adult supervision required?
Adult supervision is recommended for children and students, especially when using electrical components, sharp tools, heated equipment, glassware, small parts, or experiment materials. Customers are responsible for following all product instructions and safety precautions.
Can these products be used at home and in classrooms?
Many products may be suitable for classrooms, home learning, science projects, maker spaces, and hobby activities. Suitability depends on the specific product, learning environment, user experience, and intended activity.
How can I check what is included with a product?
Please review the product title, description, specifications, images, package quantity, and included-components section before ordering. Items shown for demonstration or scale in product images may not always be included.
How do I know whether an electronic or robotics part is compatible?
Check the listed dimensions, voltage, connector type, board compatibility, operating requirements, and supported platforms. Compatibility is not guaranteed unless it is specifically stated on the product page. Contact us before ordering if you need clarification.
When will I receive tracking information?
Tracking information is generally provided within 3–5 business days after an order is confirmed. In some cases, processing may take approximately 7–8 business days. Delivery may require an additional 4–5 business days after tracking becomes available, depending on the carrier and destination.
Why did my order arrive in separate packages?
Products in the same order may be shipped from different fulfillment locations. As a result, items may arrive separately and have different tracking numbers. You will not be charged additional shipping fees solely because an order is divided into multiple packages.
Can I change or cancel my order?
Contact us as soon as possible at vaioamaonaoak@gmail.com. We will try to assist, but changes or cancellations cannot be guaranteed once an order has entered processing or has been shipped.
What should I do if an item arrives damaged, defective, or incorrect?
Contact us promptly at vaioamaonaoak@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, and shipping label. Please retain the product and original packaging while we review your request. Eligibility and available resolutions are subject to our Return & Refund Policy.
Blog posts
View all-
Arduino Wiring Errors: 7 Mistakes Beginners Mak...
Troubleshooting Arduino wiring errors becomes easier when you know where to look first. Learn how to identify common breadboard, power, polarity, grounding, and pin-assignment mistakes in beginner electronics projects
Arduino Wiring Errors: 7 Mistakes Beginners Mak...
Troubleshooting Arduino wiring errors becomes easier when you know where to look first. Learn how to identify common breadboard, power, polarity, grounding, and pin-assignment mistakes in beginner electronics projects
-
The Beginner’s Wiring Mistakes That Can Quietly...
Learn how to troubleshoot common Arduino wiring errors in beginner electronics projects. Discover practical breadboard, LED, sensor, power, and grounding checks that make STEM maker projects easier to debug.
The Beginner’s Wiring Mistakes That Can Quietly...
Learn how to troubleshoot common Arduino wiring errors in beginner electronics projects. Discover practical breadboard, LED, sensor, power, and grounding checks that make STEM maker projects easier to debug.
-
Arduino Wiring Errors: A Step-by-Step Guide to ...
Learn how to troubleshoot common Arduino wiring errors with a practical step-by-step process covering power, ground, breadboards, LEDs, sensors, signals, and testing. Build stronger electronics skills while turning circuit failures...
Arduino Wiring Errors: A Step-by-Step Guide to ...
Learn how to troubleshoot common Arduino wiring errors with a practical step-by-step process covering power, ground, breadboards, LEDs, sensors, signals, and testing. Build stronger electronics skills while turning circuit failures...
















