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4M

Green Science Series -Potato Clock

$12.90 $16.90

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product description

Boys, Girls by 4M

  • You may know potatoes as a good source of potassium, but did you know they can be used to power an alarm clock?
  • The Two Potato Clock Allows you to generate enough electricity to run a digital clock using potatoes.
  • Just Push The Zinc and Copper Electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage.

ABOUT 4M

Green Science tackles environmental issues, such as global warming and the greenhouse effect and many science-based experiences. The brand creates kits that are easy to assemble and teach children different concepts and how they function.


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delivery & returns

Free Standard Delivery above $89!
Free Returns!
Free Click&Collect!

Home delivery (Singapore only)

If your order is $89.00 and above:

  • Standard Delivery (3-5 days) - FREE
  • Express Delivery (1-2 working days) – $ 3.90

If your purchase order is below $89.00:

  • Standard Delivery (3-5 days) - $ 8.90
  • Express Delivery (1-2 working days) – $ 12.80
Click&Collect (Robinsons The Heeren only)
  • For orders placed before 1pm, your order will be ready for collection the next day.
  • For orders placed after 1pm, your order will be ready for collection 2 days later.

>> More info on “Delivery & Collection”


Easy Returns

It’s OK if you change your mind, we offer 30 days, no fuss free returns.

  • Home collection on appointment. Simply book a collection and a driver will come to you.
  • Store return at Robinsons The Heeren only.

>> More info on “Returns & Exchanges”