Tuber Time STEM Clock

Shipping calculated at checkout.
Regular price $39.99 Save Liquid error (snippets/product-form line 69): Computation results in '-Infinity'%
Solar Balloon shipping 5.99 flat rate shipping
Anticipated ship date: 2 - 3 days
30-Day Returns


  • Two spuds
  • Detailed assembly instructions
  • No batteries needed
  • Spud clock parts

Did you know that potatoes make for excellent batteries? If you do not believe us, then it is time for you to create the Tuber Time STEM Clock! This straightforward but highly educational and fun experiment allows you to create your very own clock out of just two potatoes! This is one seriously environmentally friendly way to tell the time and keep track of all your fun activities. Never be late for school again!


  • Product Dimensions: 4 x 3.25 x 2.5 inches
  • Item Weight: 5.3 ounces
  • Manufacturer Recommended Age: 6- 15 years

Our SmartKidsPlanet initiative began in 2017 when 3 geeky and dedicated parents saw a gap in the children’s toys and games market. An opportunity was spotted while we struggled to find toys and games for our kids which enriched their minds and guided them toward science, art, math and construction. The trio then knew that their paths were set, establishing an online shop with a comprehensive range of intelligent toys for babies, children and young teenagers.

With offices based in California, our SmartKidsPlanet team enjoys a daily growth in our presence within the children’s educational toys market. We love our new place in life, and we love helping young minds with their growth and skill development, all while having as much fun as possible.


We ship all our products directly to you from our warehouses located in multiple locations in the West and East Coasts.

Processing Time: All orders placed after 2 PM EST will be shipped the next business day. Orders placed after 2 PM EST Friday will be shipped on Monday. 

Orders are shipped and generally arrive within 2 to 3 business days after the order is processed. Tracking information will be sent via email once your order has been processed. The tracking number may not become active for 24 - 48 hrs.

Kindly take note that due to our business utilizing multiple warehouses within the United States, orders of more than one item may arrive as separate deliveries at different times. 

Orders made to PO BOX may take up to 12 days. Additionally, we do not ship to military bases. Hawaii and Alaska

Customer Reviews

Based on 106 reviews
Pearl Iturriaga
This thing is so cool! My son put it together as soon as ...

This thing is so cool! My son put it together as soon as it was shipped. Excellent way for kids to get an introduction to robotics. The assembly was very easy. Foolproof!

Quneller Coleman
All in all a great purchase, though

My 8 and 6 year old grandsons put this together with minimal adult supervision in less than 10 minutes. They were thrilled that it worked! Two caveats. There are sharp parts (we did have a minor finger injury that bled, when the 8 year old decided to go ahead when the adults left the room for a moment). Also, if the potatoes or wires move at all after the clock is working, the clock resets, which was a little frustrating. All in all a great purchase, though.

Rahdeen Briguglio
Science Fair

Good for science Fair my son won the science fair with it now its in a different state

Rachel Flanigan
Nice gift for kids.

Gift for grandchild (9yo), haven't heard how well it works but assume it does, haven't heard otherwise. She was very excited to get it.

Porter H
4M Tin Can Edge Detector Science Kit Robot

This is a cool project. My niece is 7 and she loved it. She got her dad to help with putting it together, so it was also dad and daughter bonding time. She has played with her New robot for hours now, what fun! The price is right too, what's not to love.




You may also like