Be as competent as Einstein!
Challenge for today
Battle?
potato
Let’s challenge the reality
Ukrainians continue battle!
And even our potato challenges blackout!
Ukrainian slogan is: "Never give up!"
Agree?
A bit of history
When a frog’s leg made a huge step in history
I amready
Guess what connects lemon, potato and apple?
acid balance
energy value
source of electricity
OOPS!
Return to guess
Challenge: make your own potato clock
Acceptchallenge!
next
Materials:
Make a battery from potato for your electronic clock
two copper wires
two galvanized zinc nails
battery operated LCD clock
two large clean potatoes
three jumper wires (with crocodile clips)
The method
next
Attention! Follow the numbers for step by step instructions.
next
How does it work?
вимикай звук під час перегляду відео
Potato saves Christmas :)
next
Upload a photo or video of your potato clock. Share your impressions :)
This can be done here :)
A galvanic cell is the first type of electrochemical cell that was invented in 1799 by the Italian scientist Alessandro Volta. This invention became a key moment in the history of electrochemistry and electrical engineering.
Volta created the first battery by connecting alternating copper and zinc plates separated by cardboard soaked in a solution of salt or acid. This invention was called a "voltage pole" and became the basis for the development of modern electric batteries.
STEP 7.
Connect the third jumper wire from the galvanized nail of potato "A" to the copper wire of potato "B".
Тhe Italian scientist Luigi Galvani (1737-1798) discovered "animal electricity" during his experiments with the muscles of frogs, discovering that they contracted under the action of electric discharges.
STEP 2.
Place one galvanized nail in each potato.
STEP 5.
Connect the first jumper wire from the copper wire of potato "A" to the positive terminal of the clock.
STEP 6.
Connect the second jumper wire from the galvanized nail of potato "B" to the negative terminal of the clock.
STEP 1.
Label one potato "A" and the other "B".
вимикай звук під час перегляду відео
STEP 4.
Open the battery compartment of the clock and remove the battery.
STEP 3.
Place one copper wire piece into each potato (placing it as far away from the galvanized nail as you can).
Each potato works as a galvanic cell, releasing electrical energy through chemical reactios.
The potato juice acts as the electrolyte, in which charged atoms and molecules, called ions, dissolve and can flow over time. Wring the potato cells end-to-end makes a series circuit, pulling the stream of electrons through the clock.
STEM-hive_challenge_5
Вікторія Тарановська
Created on December 18, 2024
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Transcript
Be as competent as Einstein!
Challenge for today
Battle?
potato
Let’s challenge the reality
Ukrainians continue battle!
And even our potato challenges blackout!
Ukrainian slogan is: "Never give up!"
Agree?
A bit of history
When a frog’s leg made a huge step in history
I amready
Guess what connects lemon, potato and apple?
acid balance
energy value
source of electricity
OOPS!
Return to guess
Challenge: make your own potato clock
Acceptchallenge!
next
Materials:
Make a battery from potato for your electronic clock
two copper wires
two galvanized zinc nails
battery operated LCD clock
two large clean potatoes
three jumper wires (with crocodile clips)
The method
next
Attention! Follow the numbers for step by step instructions.
next
How does it work?
вимикай звук під час перегляду відео
Potato saves Christmas :)
next
Upload a photo or video of your potato clock. Share your impressions :)
This can be done here :)
A galvanic cell is the first type of electrochemical cell that was invented in 1799 by the Italian scientist Alessandro Volta. This invention became a key moment in the history of electrochemistry and electrical engineering.
Volta created the first battery by connecting alternating copper and zinc plates separated by cardboard soaked in a solution of salt or acid. This invention was called a "voltage pole" and became the basis for the development of modern electric batteries.
STEP 7.
Connect the third jumper wire from the galvanized nail of potato "A" to the copper wire of potato "B".
Тhe Italian scientist Luigi Galvani (1737-1798) discovered "animal electricity" during his experiments with the muscles of frogs, discovering that they contracted under the action of electric discharges.
STEP 2.
Place one galvanized nail in each potato.
STEP 5.
Connect the first jumper wire from the copper wire of potato "A" to the positive terminal of the clock.
STEP 6.
Connect the second jumper wire from the galvanized nail of potato "B" to the negative terminal of the clock.
STEP 1.
Label one potato "A" and the other "B".
вимикай звук під час перегляду відео
STEP 4.
Open the battery compartment of the clock and remove the battery.
STEP 3.
Place one copper wire piece into each potato (placing it as far away from the galvanized nail as you can).
Each potato works as a galvanic cell, releasing electrical energy through chemical reactios.
The potato juice acts as the electrolyte, in which charged atoms and molecules, called ions, dissolve and can flow over time. Wring the potato cells end-to-end makes a series circuit, pulling the stream of electrons through the clock.