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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K**N

Very cool experiments!

We did these model experiments with our kids as we're building a full size version at our home this spring - the model even gave us some great ideas for our version!

11.01.2026

J**J

Junior Science Buffs

I bought 2 Thames & Kosmos Science kits for a bright 8 year old nephew whose into Science; he was very excited to receive them. I never followed up to ask details about the quality and usage, but friends have said that Thames & Kosmos kits are the better ones of the choices out there.

22.11.2020

M**M

Very inetersting!

I've selected this item for experiments. When I've got it, I revealed more options for exepriments that it was described on teh site. So, I was surprised! Very good and inetersting item. I'd recommend this item to pupils and teachers.

8.02.2014

E**E

Great for science project

I purchased this product for my daughter's science project (she's 12). She was able to put it together quickly and thankfully so because the instructions have no words - only pictures. It lasted for a few practice runs then the light stopped lighting up. We took it completely apart and put it back to together with a slight adjustment to one of the washers and it was working great. The class and her teacher were impressed. It's worth the money if you are using it for a project.

18.12.2012

K**S

Great family fun

We love Thames & Kosmos kits to educate our son with alternative energy options.

7.11.2019

B**D

Flow tray cheap plastic

Flimsy plastic water tray. I don’t see why this has such good ratings. Got for water power project but demonstration didn’t work well because wheel and water sloughs “meet “ it doesn’t meet right and water is wasted and flows under the wheel .

30.04.2021

M**N

Works

Bought for science project on energy- worked beautifully!

18.03.2019

K**M

Science is cool

Great set! Easy to put together and so far everything has worked as intended

15.03.2017

ASIN	B001TGAYU0
Best Sellers Rank	#91,248 in Toys & Games ( See Top 100 in Toys & Games ) #942 in Educational Science Kits
Customer Reviews	4.4 4.4 out of 5 stars (178)
Department	Science
Is Discontinued By Manufacturer	Yes
Item Weight	0.01 ounces
Item model number	624811
Manufacturer	Thames & Kosmos
Manufacturer recommended age	8 years and up
Product Dimensions	14.6 x 2.3 x 11.5 inches
Release date	July 15, 2009

Hydropower Science Kit

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