Knowledge Encyclopedia - Science (Knowledge Encyclopedia For Children)
Knowledge Encyclopedia - Science (Knowledge Encyclopedia For Children)
Overview
- Publisher : Wonder House Books
- Publication date : November 20, 2022
- Language : English
- Print length : 192 pages
- ISBN-10 : 9354404359
- ISBN-13 : 978-9354404351
- Item Weight : 2.38 pounds
- Reading age : 10 years and up
- Dimensions : 4.72 x 3.54 x 0.67 inches
- Part of series : Knowledge Encyclopedia For Children
- Grade level : 5 - 4
- Best Sellers Rank: #39,361 in Books (See Top 100 in Books) #2 in Teen & Young Adult Electricity & Electronics #6 in Teen & Young Adult Encyclopedias #12 in Earth Science for Teens & Young Adults
- Customer Reviews: 4.8 4.8 out of 5 stars (403)
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
-
Creator 5 Build Plate Double Sided Textured Board Removable Heated Bed - color: Gold
Regular price $34.20 USDRegular priceSale price $34.20 USD -
35PCS 3ml Vial Caps, Peptide Caps for 1ml 2ml 3ml 4ml Vials Peptide Storage Protective Cap, Reusable Silicone Vial Covers Fit Peptide Case for Fridge by DawnBox, Leak-Proof and Dust-Proof.
Regular price $13.26 USDRegular priceSale price $13.26 USD -
Koala Lens Cleaning Cloth | Japanese Microfiber | Pink & Orange (Pack of 6) - color: Pink / Orange, size: 6 Pack
Regular price $16.58 USDRegular priceSale price $16.58 USD -
AOODA Small Clothing Rack for Hanging Clothes with Wheels, Gold
Regular price $44.80 USDRegular priceSale price $44.80 USD -
Gskyer Telescope, 70mm Aperture 400mm AZ Mount Astronomical Refracting Telescope for Kids Beginners - Travel Telescope with Carry Bag, Phone Adapter and Wireless Remote. - color: AZ70400
Regular price $161.00 USDRegular priceSale price $161.00 USD -
mxuteuk 720PCS M3 Screws Kit,M3×6/8/10/12/16/20mm M3 Screws Assortment Kits,12.9 Alloy Steel M3 Hex Socket Head Bolts Nuts Washers Set Suitable for 3D Printer,DIY - size: 720PCS M3
Regular price $13.26 USDRegular priceSale price $13.26 USD -
3D Printer Stand Table for 48 Filament Storage Rack, Brown - color: Brown
Regular price $81.79 USDRegular priceSale price $81.79 USD -
mxuteuk 521PCS M4 Screws Assortment Kit,M4×6/8/12/16/20/30mm 6 Size Hex Socket Head Cap Bolts, Nuts & Washers Set,12.9 Grade Alloy Steel Black Zinc M4 Bolts for Mechanical, Repair & DIY - size: 521PCS M4
Regular price $14.92 USDRegular priceSale price $14.92 USD -
3D Printer Stand Table for 48 Filament Storage Rack, Black - color: Black
Regular price $81.79 USDRegular priceSale price $81.79 USD -
Freenove Ultimate Starter Kit for Raspberry Pi Pico 2 W (Included), Dual Arm Cortex-M33 and Dual Hazard3 RISC-V Microcontroller, 767-Page Detailed Tutorial, 224 Items, 119 Projects, Python C Java Code - color: with Raspberry Pi Pico 2 W
Regular price $97.86 USDRegular priceSale price $97.86 USD -
MUHWA 5 Place Pipettor Stand Pipette Rack Laboratory Pipette Stand, Two Packs
Regular price $76.36 USDRegular priceSale price $76.36 USD -
mxuteuk M2 Screws Assortment,M2 x 4/6/8/10/12/16/20mm Hex Socket Head Cap Screws Bolts Nuts Kit, 520PCS 12.9 Grade Alloy Steel Assorted Screws Small Metric Screws Suitable for 3D Printer DIY - size: 520PCS M2
Regular price $14.92 USDRegular priceSale price $14.92 USD -
Freenove Ultimate Starter Kit for Raspberry Pi Pico 2 (Included), Dual Arm Cortex-M33 and Dual Hazard3 RISC-V Microcontroller, 767-Page Detailed Tutorial, 224 Items, 119 Projects, Python C Java Code - color: with Raspberry Pi Pico 2
Regular price $89.56 USDRegular priceSale price $89.56 USD -
Gracious Living 2-Compartment Portable Plastic Storage Caddy & Tote - size: 1 Pack
Regular price $31.52 USDRegular priceSale price $31.52 USD -
mxuteuk 450PCS M3 M4 Screws Assortment Set,6/8/12/16/20mm Screws Bolts Nuts Kit 12.9 Grade Alloy Steel Hex Socket Head Cap M3 M4 Bolts with Hex Wrench - size: 450PCS M3 M4
Regular price $16.58 USDRegular priceSale price $16.58 USD -
QWORK Life-Size Human Kidney Model, Educational Anatomy Replica Two-Part Structure Teaching Tool for Classroom and Biology Study
Regular price $31.95 USDRegular priceSale price $31.95 USD -
Freenove Ultimate Starter Kit for Raspberry Pi Pico (Included), Dual-core Arm Cortex-M0+ Microcontroller, 767-Page Detailed Tutorial, 222 Items, 119 Projects, Python C Java Code - color: with Raspberry Pi Pico
Regular price $82.92 USDRegular priceSale price $82.92 USD -
mxuteuk 420PCS M3 Screws,M3x30/35/40/45/50mm Hex Socket Head Cap Screws Bolts Nuts Kit,12.9 Grade Alloy Steel M3 Bolts with Hex Wrench - size: 420PCS M3 x 30/35/40/45/50mm
Regular price $14.92 USDRegular priceSale price $14.92 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-
How to Organize Resistors, LEDs, and Tiny Compo...
Discover how to organize resistors, LEDs, jumper wires, and other small electronics components in a STEM classroom. This practical guide covers storage solutions, labeling systems, project kits, and inventory routines...
How to Organize Resistors, LEDs, and Tiny Compo...
Discover how to organize resistors, LEDs, jumper wires, and other small electronics components in a STEM classroom. This practical guide covers storage solutions, labeling systems, project kits, and inventory routines...
-
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.

















