Energy from Food
Apr 20 2011
MDominguez2's picture
Source: MDominguez2
Summary Information


energy, digestion, battery, fruit, vegetable, transfer, producers, electrochemical, electron, electrode, zinc, redox reaction, anode
Physical Science
Workplace Skills: 
Raising Questions
Problem Solving
Planning investigation

Estimated Time Required:

less than 1 hour

Target Grade (Ages):

Grade 5 (Ages 10-11)

Diversity Indicators:

Differentiation occurs and is articulated when measuring student responses and questions.

Watch this Lesson in Practice


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MDominguez2's picture

April 27, 2011 - 8:14pm

Not yet Nicole, I cant find

Not yet Nicole, I cant find large enough potatoes, maybe we can use a whole bag at once. :)
mcgaffin's picture

October 31, 2012 - 6:22pm

Diid this lesson with high school biology students

I did this lesson with my high school biology students. It was very easy to set up once I knew what I needed. I connected the copper wire and the nail with alligator clips to a multimeter and students experimented with different substances (raw and cooked potatoes, lemons and soda) to see what combination would give them the highest voltage. They were very engaged and enjoyed the opportunity to engineer something in class. I discussed how the potatoes caused a chemical reaction with the zinc which caused the electrons to flow...and how the flow of electrons transfers energy. I tied this in to the flow of electrons in the mitochondria and chloroplast. This lesson would also be great for kids in chemistry, physics or just a basic lab science class.