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In this activity, learners explore conservation of energy by experimenting with a solar cell light device. Learners will set the solar cell in the sun for varying times to charge the battery and then measure the time the battery can run in a flashlight. Learners will collect and graph the data to draw conclusions. In the final section of the activity, learners will discover that different devices (such as a clock or toy car) use energy at different rates.
- Under 5 minutes
- 45 to 60 minutes
- $1 - $5 per group of students
- Ages 8 - 14
- Activity, Experiment/Lab Activity, Lesson/Lesson Plan
- English
Quick Guide
Materials List (per group of students)
- 1 solar cell night light device, with battery
- time-keeping device (clock or stop watch)
- 1 one-battery flashlight
- 1 one-battery clock
- 1 one-battery toy car
Subjects
-
Engineering and Technology
- Technology
-
Physical Sciences
-
Energy
- Potential and Kinetic Energy
-
Energy
-
Mathematics
-
Data Analysis and Probability
- Data Analysis
- Data Collection
- Data Representation
-
Measurement
- Rate
- Reasoning and Proof
- Representation
-
Data Analysis and Probability
-
The Nature of Technology
-
The Design Process
- Problem Solving
-
The Design Process
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
- Gathering Data
- Formulating Explanations
- Communicating Results
-
The Scientific Process
Informal Categories
- Electronics
- Outdoor Activity
- Toys
Audience
To use this activity, learners need to:
- see
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, Little Shop of Physics, 2009