Electrolyte Challenge

Electrolyte Challenge
  • Buy 5 for $28.95 each and save 4%
  • Buy 15 for $26.95 each and save 11%

Availability: In stock

Build an electrolyte sensor and experiment to see if sports drinks really do provide more electrolytes than other beverages. You can even use what you learn to invent your own hydrating beverage!

"The experiment content and directions were perfect! It was great that a kit was available for purchase versus me going out to find the supplies. My son's project came in 4th place out of 150 science fair projects!"

-Parent, Waldorf, MD



It's easy to find sports drinks on the sidelines of sporting events. One of the featured benefits of these drinks is electrolytes, which your body loses as you sweat. Do sports drinks really provide more electrolytes than other drinks such as orange juice? Use this chemistry science kit to find out!

With this kit, you will learn about electrolytes and how you can measure their concentration in a solution. We've included all the materials to build your own homemade electrolyte sensor. Does Gatorade have more electrolytes than orange juice? How many electrolytes are in coconut water, the latest sports drink fad? Answer these questions, then experiment with different recipes to create your own sports drink!

The kit follows the procedures in the Science Buddies chemistry project Electrolyte Challenge.

Each kit contains:

1   Digital multimeter
1 Copper wire, bare, 24-gauge (5 feet) 
1 9-V battery
1 9-V battery clip
3 Alligator clip leads (colors may vary)
1 1K Ohm resistor


Instructions for this kit are available online, see Additional Information for links to the instructions and more.

You will also need from home:

- Orange juice 
- Coconut water or other beverage with electrolytes 
- Tap water 
- Distilled water (available at grocery stores)
- Disposable plastic straw
- Scissors
- Small plastic, glass, or ceramic bowls (8)
- Masking tape or labels
- Permanent pen or marker
- Paper towels
Additional Information



Instructions are available online:  Electrolyte Challenge Instructions

For troubleshooting tips, please read our  FAQ's.

Area of Science Chemistry
NGSS Alignment MS-PS1-2, MS-LS1-7

Customer Reviews 1 item(s)

Excellent Project
This project was both interesting and fun! I would highly recommend. My 10 year old twin boys completed this project this year (2015) and was one of 6 winners chosen out of 400+ projects submitted!! We are off to the county district fair! Thank you Science Buddies!!
Review by D.Strickland / (Posted on 8/18/2016)