We put it in a tote inside at the science fair. Not sure how long it would hold up outside.

How long does it take to build?

Thank you for your question. It depends on the model and the building speed of the user. There are 6 different models that you can build with varying levels of difficulty. You can learn more here: http://www.thamesandkosmos.com/products/manuals/624811_hydropower_manual.pdf

Will a 6 yr old be able to use this?

With some oversight, yes. It is an assembly where there are instructions that need to be followed, with some explanations and other tips in written form, so it is helpful if the assembler can read, understand, and fully comprehend. Once assembled, there are gearing changes and other adaptations that can be done by a 6-year old after he/she has a basic understanding of the actual workings of the generator assembly. We used this set for a 7th grade science fair experiment, so the assembly was 100% done by my then 13-year old son. But I followed along out of curiosity and I think it could be assembled by a younger set of hands with adult supervision.

The led broke on this contraption, and attaching a new led doesn't seem to work. i tried a 3ohm bulb with no success. suggestions?

When mine broke, I thought it was the LED bulb, but it was actually the motor. It is possible that is what is wrong with yours.

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Thames & Kosmos Hydropower, Kids Science Kit, Learning Resources for Mechanical Physics, STEM Toys for Science Experiments, Age 8+

Product ID: 267207899

Details

Age range (description)
8+
Brand
Thames &
Item dimensions L x W x H
37.1 x 5.8 x
Size
14.6 inches
Theme

💧12 hands-on water energy experiments

📘32-page full-color illustrated manual

⚙️105 modular construction pieces

R2165

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Description

💡 Spark curiosity, power the future with water!

SCIENCE MADE SIMPLE - Step-by-step, full-color manual ensures smooth assembly and deep understanding.
HANDS ON STEM LEARNING - Engage with 12 interactive experiments that reveal water’s hidden power.
MODULAR REUSABLE DESIGN - 105 durable acrylic pieces snap together easily for endless creativity.
DIVE INTO HYDROPOWER MASTERY - Build 10 dynamic models to explore real-world renewable energy concepts.
PERFECT FOR FUTURE INNOVATORS - Designed for kids 8+, fostering curiosity and family bonding over clean energy.

The Thames & Kosmos Hydropower Science Kit offers kids aged 8+ a hands-on introduction to renewable energy through 10 buildable models and 12 experiments. Featuring 105 durable acrylic pieces and a detailed 32-page manual, this STEM kit demystifies hydropower concepts like water pressure, surface tension, and electricity generation—perfect for inspiring the next generation of eco-conscious innovators.

Specifications

ASIN	B001TGAYU0
Age Range Description	8+
Battery Description	No battery required
Best Sellers Rank	#48,670 in Toys ( See Top 100 in Toys ) #698 in Educational Science Kits
Brand Name	Thames & Kosmos
Country of Publication	Taiwan
Customer Reviews	4.3 4.3 out of 5 stars (179)
Educational Objective	Scientific Concept Development Skills
Global Trade Identification Number	00857853001841
Included Components	Hydropower
Is Assembly Required	No
Item Dimensions	37.1 x 5.8 x 29.2 centimeters
Item Part Number	624811, TK624811
Item Type Name	Thames & Kosmos \| 624811 \| Hydropower \| Experiment Kit \| Renewable Energy Science Kit \| Build Models To Harness the Energy of Water \| 12 Experiments \| Ages 8+
Item Weight	0.01 Ounces
Manufacturer	Thames and Kosmos
Manufacturer Part Number	624811
Manufacturer recommended age	8 - 8 years
Material Type	Acrylic
Model Number	624811
Number of Items	1
Number of Packs	1
Set Name	Alternative Energy and Environmental Science Hydropower
Size	14.6 inches
Sub Brand	thames
Theme	science-and-nature
UPC	857853001841 609224804496 730309083236 847814017196
Unit Count	1 Count

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R2165

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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