Lead Acid Battery

Solar Battery Charging

Grades:
7-12
Unit:
Solar Battery Charging
Description:

Students will become familiar with circuits, cells, batteries, and photovoltaic cells, then plan, build, test, modify, and re-test a small solar battery charger designed to maintain batteries from a particular device.

Energy Content:
Batteries & Storage,
Circuitry,
Electrical Energy,
Electricity Generation,
Solar Photovoltaic
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More Details Less Details
Learning Goal(s):
Students will build series, parallel, and parallel series circuits from a schematic diagram. Students will master the basic concept of battery charging. Students will be able to plan and build solar battery chargers for a given battery system. Intermediate students will calculate time to charge a depleted battery to its full capacity given specifications of a solar module. Students will be able to explain how a solar cell works with diagrams and words. Students will use a digital multi-meter to measure voltage, current, resistance, and diode polarity.
Pedagogy & Practice:
Hands-on Materials,
Group Work/Collaboration,
Engineering Design
NGSS Science and Engineering Practices:
2: Developing and Using Models,
3: Planning and Carrying Out Investigations,
5: Using Mathematics and Computational Thinking,
6: Constructing Explanations and Designing Solutions,
8: Obtaining, Evaluating, and Communicating Information
Author:
Luke Robbins
Relevant NGSS PE:
MS-ETS1-1,
HS-ESS3-4,
HS-ETS1-2,
HS-PS3-3
Other Subjects Covered:
ELA: Vocabulary Development,
Math: Algebra,
Math: Measurement
Estimated Activity Length:
9 hours
Solar Tracker

Simple Solar Tracker

Grades:
4-12
Description:

Students will be shown a working example of a solar tracker and asked to replicate the design based on their observations. The design incorporates four solar cells arranged in two arrays with each array reverse biased such that they generate a voltage that...

Energy Content:
Circuitry,
Electrical Energy,
Solar Photovoltaic
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More Details Less Details
Learning Goal(s):
Students observe and replicate a simple solar tracker. Students will learn basic electric circuits and terminology. Students will reflect on possible improvements for solar tracker. Students will reflect on how the engineering design process is used daily.
Pedagogy & Practice:
Engineering Design,
Group Work/Collaboration,
Hands-on Materials
NGSS Science and Engineering Practices:
1: Asking Questions and Defining Problems,
6: Constructing Explanations and Designing Solutions
Author:
Pat Blount
Relevant NGSS PE:
HS-PS3-3
Other Subjects Covered:
ELA: Writing
Estimated Activity Length:
2 hours
Basic Stamp Microprocessor

Creating a Light-Tracking Servo

Grades:
9-12
Unit:
Robotic Sunflower
Lesson Number:
3
Description:

Students will learn how to program the Basic Stamp to use information from two photoresistors to point a servo at a light source. This will be the first degree of freedom for the flower head.

Energy Content:
Circuitry,
Electrical Energy,
Electronics,
Light (Visible)
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More Details Less Details
Learning Goal(s):
Students will synthesize the previous lesson for light metering and servo control to design a servo controlled by two photoresistors that will track a light source.
Pedagogy & Practice:
21st Century Skills Development,
Engineering Design,
Group Work/Collaboration,
Project-Based Learning
NGSS Science and Engineering Practices:
3: Planning and Carrying Out Investigations,
5: Using Mathematics and Computational Thinking
Author:
Pat Blount
Relevant NGSS PE:
HS-ETS1-1,
HS-ETS1-2,
HS-ETS1-3,
HS-PS3-1,
HS-PS3-3
Other Subjects Covered:
Computer Science
Estimated Activity Length:
1 hour
Basic Stamp Microprocessor

Dual Axis Light Tracking

Grades:
9-12
Unit:
Robotic Sunflower
Lesson Number:
4
Description:

Students will take the previous lesson and apply them in creating a light tracker with two degrees of freedom. The axis of rotation will be about the horizontal and vertical. Teams will have everything they need to make this build work. They have already...

Energy Content:
Circuitry,
Electrical Energy,
Electronics,
Light (Visible)
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More Details Less Details
Learning Goal(s):
Students will create a solar tracker with two degrees of freedom.
Pedagogy & Practice:
21st Century Skills Development,
Group Work/Collaboration,
Hands-on Materials,
Project-Based Learning
NGSS Science and Engineering Practices:
5: Using Mathematics and Computational Thinking
Author:
Pat Blount
Relevant NGSS PE:
HS-ETS1-1,
HS-ETS1-2,
HS-ETS1-3,
HS-PS3-1,
HS-PS3-3
Other Subjects Covered:
Computer Science
Estimated Activity Length:
1 hour
Basic Stamp Microprocessor

Integrating Solar Power

Grades:
9-12
Unit:
Robotic Sunflower
Lesson Number:
5
Description:

At this point students should have a working robotic sunflower that will track the sun with 2 degrees of freedom. This next lesson powers the whole system with a photovoltaic module. A Zener diode is used to charge a 6V motorcycle battery which then...

Energy Content:
Circuitry,
Electrical Energy,
Electronics,
Solar Photovoltaic
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More Details Less Details
Learning Goal(s):
Students will create voltage regulator and construct a solar battery charger.
Pedagogy & Practice:
21st Century Skills Development,
Group Work/Collaboration,
Hands-on Materials,
Project-Based Learning
NGSS Science and Engineering Practices:
6: Constructing Explanations and Designing Solutions
Author:
Pat Blount
Relevant NGSS PE:
HS-ETS1-1,
HS-ETS1-2,
HS-ETS1-3,
HS-PS3-1,
HS-PS3-3
Other Subjects Covered:
Computer Science
Estimated Activity Length:
1 hour