The Potato Clock uses a pair of ordinary spuds to power a digital clock.
This kit includes a digital clock, wires and prongs; two potatoes are all that's needed to create a working clock.
This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science.
Detailed assembly instructions included.
No batteries required.
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How It Works:
The metal strips and potato make a simple battery that creates electricity to operate to operate the clock. Each potato works as a device called a electrochemical cell. It converts the chemical energy stored in the metal strips intoelectrucal energy.Two potatoes are needed to make electricity strong enough to run the clock.
A cell works because of the chemical properties of the metals inside (in this case the copper and zinc).The different properties cause tiny particles charged with electricity . (called ions) to move between the the two strips of metal. This flow is an electric current. The potato contains the particles that allow the current to flow,but it stops the metals touching. Electric current also flows along the wires between the zinc and copper strips and the clock. This current makes the clock work.
Put some soft drink into the pots provided. Insert the copper and zice plates into the pots, as shown in the diagram.
Taking care that the metal pates do not touch each other. The clock should now start to work.
You may experiment with different liquids like salt water, fruit juices. Or fruit like lemon, orange, tomato etc. The fun is unlimited.
Cup Size: 2.17 inch x 2.17 inch x 2.68 inch (5.5 cm x 5.5 cm x 6.8 cm) Clock Size: 2.64 inch x 1.26 inch x 0.47 inch (6.7 cm x 3.2 cm x 1.2 cm)
Age: 8 years and up
My daughter took a couple months before actually playing with this, but once she did she was fascinated and turned it into a science project testing all sorts of other foods and trying to determine what it is that made it work. This is an inexpensive but educational gimmick that she still plays with now.
My only concern is the wires are very cheap and break easily. Expect to have to strip them to get to more wire after they wear out, and if the toy gets any serious use expect to replace the wires completely. Fortunately that's about 50 cents of wire so not a big deal.
This is neat concept. Not practical obviously, but fun to teach kids how electro-chemical energy works.
Actually works and great price. Follow directions and be careful of the wires.
Great and fun experiment to do with kids. My son brought it to his kindergarten friends and they all loved it
Such a great gift for kids when you don't know what else to get. If this is the first time they've ever seen this they'll think it's so cool. Like magic. At $10 you don't feel bad if it's just for a night of fun, and maybe inspires them to learn more.
One of the extra credit assignments for my sons 6th grade science class was a potato clock. I had trouble finding the individual pieces required so I ordered this online. My son was able to follow the instructions easily and put it together. He thought it was pretty cool when the clock turned on. He got the extra credit.
Purchased for my son's 5th grade science project. Worked great and also gave other ideas we ended up adding to his project. Would definitely recommend.
My students love this!
My class loved this!
Great kit for a young student science project
Worked great! Didn't take long to put together but kids were amazed!
Great package & easy for kids to do!!!
Great easy science project. It is very easy to figure out and use. My son really likes it!
Great item to get kids interested in STEM.
A classic! We used lemons to the continued amazement of our grandkids and adult visitors.
Gift for nephews. They like it.
This kit worked great for my niece's science project. The clock continued to work for at least 10 days or more!
gift -- he loved it -- I gave him two baked potatoes that he unwrapped first -- he loved it
Perfect for my kids science fair project. Worked well.
Purchased 3 for my 3) 7 year old nephews. They LOVED them!!! Great for kids learning about science!
Great gift for our 10 year old.
Our grandchildren loved it!
Great product! Especially for the price!
Granddaughter loved it.
Great to use for a science fair projects!
Awesome for school projects. Easy and simple way to have fun.
Bought for my nephew who is 9 he loved it! Would recommend!
This was a last second purchase after not being able to get our own potato light to work. This shipped quickly and everything worked perfectly. It saved my daughter (and myself) from the stress of her science project.
My 7yo son used this kit as part of his science fair project. He had such a great time learning about how this worked and it sparked a huge interest in chemistry. He now wants to learn all about the electrons, and electrolytes etc etc.
Great product with very easy to use instructions.
Great science project
We used this for my little brother's project. It has the bare minimum of items needed, but everyone works. It's cute for projects with little kids learning about currents and such.
My kids used this for a science fair they had in school. They hooked one up to a potato, one apple and one lemon! They won first place in the science fair. This worked absolutely beautifully in fact the potato was still going strong and just wouldn't die! Fantastic it has everything you need
What a great idea for a 1st grade science project!
This was a perfect buy to help my daughter with her science project. It was safe effective and easy to use. It's not only for the potato clock but has several other ideas for Effective science projects as well. In fact we will be using this next year in the other stated projects as well. it's a money saver and safe
What can I say? This was for my Son's science fair and he was able to use this for his "Nature's battery's - Fruits versus Vegetables" exhibit. This worked great and he was able to use this and the Lemon clock one from 4M with no issues. He's 10 and found it easy to use.
Neet clock, works great... Funny to show your friends
Exactly as described and real easy project..
Lots of fun! Simple easy to follow directions.
This product worked excellent.
This was so fun for the kids they loved it. It has everything you need except the potatoes and the clock actually works like a real clock!
My kids loved these
I purchased this for my son. I wanted him to get more interested in science. He now loves it!
kids liked it.
Can't say enough great things about this item - it is EASY to use and it works great. Used it for the 5th grade Science Fair
I bought this for my young step brother. He loved this and kept him entertained for a few hours. Good for kids who are interested in science based projects, or are in how things work. More rewarding than an action figure, and most video games.
My grandson was very happily surprised when this actually worked. He says its the best present he has ever gotten.
This was a fun activity to do with the family
It made the granddaughter happy. And 3 weeks later it is still working and keeps excellent time.
Not much to it, but it works great. Try it with other vegetables too.
It worked, know I will never be late for work again.
Purchased as a gift for my soon to be 10 year old grandson. He LOVES science. He actually enjoyed putting this clock together. Simple, easy directions made it even better. Enjoy!!
My step son had it open and working in no time he was captivated and happy
Great experiment. Even the 4 year olds loved it.
My 8 year old grandson was amazed by this product. We put it together the same day it was given and the fact that it actually worked gave him a thrill, as well as the adults in attendance. We highly recommend this item.