Innovating Science - Density of Liquids: The Color Column Demo Kit
Innovating Science - Density of Liquids: The Color Column Demo Kit
About this item
- Color column demo kit for demonstrating the density of liquids
- Activity for combining differing densities of liquids to form density gradient resulting in layered, multi-colored column (included)
- Optional investigation for studying relative density of small, solid objects by dropping them in density column
- Instructions and material safety data sheet (MSDS) packet for product information and handling procedures
- Suitable for age 13 and older with adult supervision
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
-

GeoPuzzle USA & Canada Jigsaw Puzzles, 69 Pc Puzzle for Kids Ages 6 & Up - color: 1 Set-usa & Canada
Regular price $31.46 USDRegular priceSale price $31.46 USD -
National Geographic Break Open 2 Jumbo Geodes Science Kit for Kids - size: 2 Jumbo Geodes
Regular price $33.18 USDRegular priceSale price $33.18 USD -
GeoPuzzle Europe Jigsaw Puzzles, 58 Pc Map Puzzle for Kids Ages 6 and Up - color: 1 Set-europe
Regular price $34.84 USDRegular priceSale price $34.84 USD -
Cole-Parmer Solution Label w/Waterproof Overlay, 4 (in) L x 2 (in) H: 1000/RL - size: 4"L x 2" H; 1000/RL
Regular price $502.98 USDRegular priceSale price $502.98 USD -
VGBUY 1001Pcs M2.5 Screws Kit,Black M2.5 Screws (7 Sizes 4-20mm),Hex Socket Head Cap Small Metric Bolts Nuts Assortment,12.9 Grade Alloy Steel,Black Oxide, 4/6/8/10/12/16/20mm - size: M2.5x4/6/8/10/12/16/20mm, style: Socket Head
Regular price $14.92 USDRegular priceSale price $14.92 USD -
GeoPuzzle Australia & Oceania Jigsaw Puzzles,50 Pc Puzzle for Kids Ages 6+ - color: 1 Set-australia & Oceania
Regular price $36.50 USDRegular priceSale price $36.50 USD -
Coopay 6 Pcs Insect Bug Viewer for Kids - Bug Jars, Critter Insect Cage, Bug Container, Bug Catcher, Magnifying Insect Box for Children, Kids Science Nature Exploration Collecting Kit - style: 6 Pack Set
Regular price $28.20 USDRegular priceSale price $28.20 USD -
Cole-Parmer Solution Label w/Waterproof Overlay, 3 (in) L x 1.5 (in) H: 1000/RL - size: 3"L x 1.5" H; 1000/RL
Regular price $280.54 USDRegular priceSale price $280.54 USD -
Cole-Parmer Solution Label w/Waterproof Overlay, 2 (in) L x 1 (in) H: 1000/RL - size: 2"L x 1" H; 1000/RL
Regular price $266.84 USDRegular priceSale price $266.84 USD -
GeoPuzzle Africa & Middle East Jigsaw Puzzles, 65 Pc Puzzle for Kids - color: 1 Set-africa & Middle East
Regular price $34.84 USDRegular priceSale price $34.84 USD -
Coopay 3 Pcs Insect Bug Viewer for Kids - Bug Jars, Critter Insect Cage, Bug Container, Bug Catcher, Magnifying Insect Box for Children, Kids Science Nature Exploration Collecting Kit - style: 3 Pack Set
Regular price $23.22 USDRegular priceSale price $23.22 USD -
Motor Driver Kit with Dual RZ7899 Chip Board + 4 DC Motors + PH2.0 to Dupont Cable, Ultra-Thin High-Efficiency Design, Ideal L298N Replacement for Arduino/Raspberry Pi/ESP32 Projects
Regular price $33.18 USDRegular priceSale price $33.18 USD -
GeoPuzzle World Jigsaw Puzzles, 68 Pc Map Puzzle for Kids Ages 6 & Up - color: 1 Set-world
Regular price $31.52 USDRegular priceSale price $31.52 USD -
Coopay 24 Pcs Insect Bug Viewer for Kids - Bug Jars, Critter Insect Cage, Bug Container, Bug Catcher, Magnifying Insect Box for Children, Kids Science Nature Exploration Collecting Kit - style: 24 Pack Set
Regular price $61.40 USDRegular priceSale price $61.40 USD -
200Pcs 10ml Round Bottom Centrifuge Tubes with Lids
Regular price $27.21 USDRegular priceSale price $27.21 USD -
Missouri Star Rotary Cutter, 60mm Blade, Rolling Cutter Tool for Quilt Appliques and Cutting Fabrics, Essential Quilting and Sewing Supplies for DIY Craft Projects - color: 60mm Rotary Cutter
Regular price $54.70 USDRegular priceSale price $54.70 USD -
Coopay 12 Pcs Insect Bug Viewer for Kids - Bug Jars, Critter Insect Cage, Bug Container, Bug Catcher, Magnifying Insect Box for Children, Kids Science Nature Exploration Collecting Kit - style: 12 Pack Set
Regular price $36.67 USDRegular priceSale price $36.67 USD -
Kismile 3.2 Cubic Feet Chest Freezer, Small Deep Freezer for Home, Black - color: Black, size: 3.2 Cu.ft
Regular price $348.58 USDRegular priceSale price $348.58 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...














