Source Institutions
Source Institutions
Add to list Go to activity
Activity link broken? See if it's at the internet archive
![](/sites/default/files/styles/square250/public/resource_images/smile-000-000-003-999.png?itok=nFZ0AZQ-)
In this activity on page 10 of the PDF, learners detect the amount of energy that can flow through a sodium chloride electrolyte solution with a light sensor. Learners construct an electrolyte sensor, test various solutions of saltwater, and attempt to identify mystery solutions based on their conductivity.
- Under 5 minutes
- 45 to 60 minutes
- $5 - $10 per student
- Ages 8 - 14
- Activity, Experiment/Lab Activity
- English, Spanish
Quick Guide
Materials List (per student)
- 3 mini-craft sticks
- Aluminum foil
- Light (mini-lamp 1.5 w volt--25 milliamps)
- 9-volt battery
- Transparent tape
- Permanent marking pen
- 5 disposable plastic cups (9-ounce)
- 1 paper towel sheet
- Tap water
- Epsom salt
Subjects
-
Engineering and Technology
-
Engineering
- Electrical Engineering
-
Engineering
-
Physical Sciences
-
Electricity and Magnetism
- Electric Charges and Currents
- Electric Circuits
-
Energy
- Energy and Power
-
Chemistry
- Chemical Bonding
- Solutions
-
States of Matter
- Solids
- Liquids
-
Structure and Properties of Matter
- Elements and Periodic Table
-
Electricity and Magnetism
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
- Gathering Data
- Formulating Explanations
- Communicating Results
-
The Scientific Process
Audience
To use this activity, learners need to:
- see
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Foreign language versions of this resource:
Access Rights:
- Free access
By:
- Department of Volunteer Support, American Chemical Society
Rights:
- All rights reserved, American Chemical Society, 2011