Cost Effective Solar Cells: Researching Chemicals and Materials for Solar Cell Construction

Grades:
9-12
Lesson Number:
10
Description:
This lesson is designed to be completed in three 80-minute sections. The teacher will facilitate student research on solar cell designs centering around the engineering problem: How can we make a cheaper, cleaner or more efficient solar cell? Teachers should...
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Learning Goal(s):
Students will research chemicals, materials and procedures for their own solar cell designsStudents will write an introduction to the problem, including criteria, constraints, and solar cell conceptsStudents will research and write a rough materials and procedure for the solar cellStudents will research and describe their solar cell designs.
Author:
Tom Wolverton
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
4 hours

Cost Effective Solar Cells: Titanium Dioxide Raspberry Solar Cell Data Sharing

Grades:
9-12
Lesson Number:
8
Description:
This lesson is designed to be completed in one 80-minute section. The teacher will facilitate the sharing of student titanium dioxide solar cell results with emphasis on variables during data collection. Teachers will demonstrate spreadsheet sorting for...
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Learning Goal(s):
Students will collect and analyze titanium dioxide coated “raspberry juice” solar cell data.Students will discuss results and draw conclusions about variables that may affect power generation.
Author:
Tom Wolverton
Relevant NGSS PE:
Estimated Activity Length:
2 hours

Cost Effective Solar Cells: Copper Oxide Cell Data Sharing

Grades:
9-12
Lesson Number:
6
Description:
This lesson is designed to be completed in one 40-minute section. The teacher will facilitate the sharing of student solar cell data from indoor and outdoor testing through a gallery walk session. Variables such as lighting, photovoltaic effect, copper...
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Learning Goal(s):
Students will share and analyze oxidized copper sheet solar cell data
Author:
Tom Wolverton
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
1 hour

Cost Effective Solar Cells: Copper Oxide Solar Cell Construction and Testing

Grades:
9-12
Lesson Number:
5
Description:
This lesson is designed to be completed in one 80-minute section, but can be done in two 40-minute sections. The teacher will facilitate student construction of copper oxide plates with electric burners or hot plates. Teachers will guide students in making a...
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Learning Goal(s):
Students will construct an oxidized copper sheet solar cell Students will test an oxidized copper sheet solar cell for voltage and current
Author:
Tom Wolverton
Relevant NGSS PE:
Estimated Activity Length:
2 hours

Cost Effective Solar Cells Unit Plan

Grades:
9-12
Description:
Through a series of solar panel and solar cell construction activities, students will learn the basic principles of energy conversion from light energy to chemical & electrical energy. Students will assemble and test pre-constructed solar panels to gain a...
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Learning Goal(s):
Students will discuss social, cultural, and economic implications of sustainable solar energy.Students will construct and test solar panel arrays to power LED lights, fan motors, and music playersStudents will review circuitry basics and solar cell layersStudents will analyze and share out power generation results with classmatesStudents will construct and test an oxidized copper sheet solar cellStudents will share and analyze oxidized copper sheet solar cell dataStudents will construct and test titanium dioxide coated “raspberry juice” solar cellsStudents will collect and analyze titanium dioxide coated “raspberry juice” solar cell data.Students will discuss results and draw conclusions about variables that may affect power generationStudents will visit a solar cell or silicon manufacturing facility and/or engage with guest speakers. Students will learn more detailed solar cell principles and manufacturing techniques involved in solar cell constructionStudents will research chemicals, materials and procedures for their own solar cell designsStudents will build and present models of their proposed solar cellsStudents will construct and test unique solar cellsStudents will present construction progress and project obstaclesStudents will format solar cell data, draw conclusions, and construct an engineering report as a research poster
Author:
Tom Wolverton
Estimated Activity Length:
10 hours
Solar Mobile

Light Source Efficiency: Exploring Irradiance

Grades:
6-8
Lesson Number:
4
Description:
This lesson explores the concept of irradiance by having students use a Vernier Pryanometer. Using the “Light Source Efficiency” worksheet to guide their work, students measure irradiance as compared to the Sun’s irradiance to see what would be the best li...
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Learning Goal(s):
Using a Vernier Pyranometer, students will measure electromagnetic radiation in watts per square meter (W/m2 ). Students will compare Sunlight irradiance with various indoor lighting options. Students will make a recommendation as to the optimum indoor lighting for powering solar panels. 
Author:
Kristy Schneider
Estimated Activity Length:
2 hours
Solar Mobile

Solar Mobile Design Challenge Unit Plan

Grades:
6-8
Description:
This unit involves students learning about transferring solar energy to small motors, exploring the center of gravity and testing light sources (including the sun). The culminating engineering design project gives students the chance to pull together their...
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Learning Goal(s):
Students will design circuits using various solar panels in order to power motors with propellers. Students will learn about solar energy transfer in order to power the motors on their solar aircraft.Students will research an aircraft and draw an outline of the aircraft onto foam board. Students will explore the concept of center of gravity. Students will test the efficiency of various light sources (incandescent, fluorescent, LED, halogen) for usage by a PV cell.Students will use their prior testing results and knowledge to engineer a solar-powered mobile. Students will work to transfer the most energy from the solar panels considering all the tested variables in order to power the fastest, most efficient mobile.Students will demonstrate and explain why their solar mobile should be chosen for the solar mobile display in the children’s museum. 
Author:
Kristy Schneider
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
0 sec
Design a 50 Year Energy Plan

What is Our Plan?

Grades:
9-12
Lesson Number:
6
Description:
With all the pieces in place, this Unit’s final lesson asks students to code a spreadsheet that calculates and mathematically predicts the environmental impacts of different energy sources and strategies over a 50 year timespan. Divided into five different...
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Learning Goal(s):
1. Students utilize their knowledge of energy’s impact on global systems as well as the process of energy generation in order to inform their development of a 50-year Energy Plan divided into decades. 
Author:
Bradford Hill
Estimated Activity Length:
5 hours
Design a 50 Year Energy Plan

Scaling up to Power Production Let’s use Data to Optimize the Performance of a Solar Cell Array

Grades:
9-12
Lesson Number:
4
Description:
Somewhat similar to the first part of the wind turbine project from Lesson 3, students are tasked with optimizing the performance of a photovoltaic system. This objective both allows students to apply the engineering-design process they absorbed in previous...
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Design a 50 Year Energy Plan

Diving into the Physics of Motors and Generators

Grades:
9-12
Lesson Number:
2
Description:
Using energy analysis and some tinkering students hand wind speakers to play music from a phone. This acts as a phenomenon to engage students in the exploration of electromagnetism. At this point, they have created a motor, which utilizes electric current to...
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Learning Goal(s):
1. Through hands-on exploration, create a working speaker for a cellphone. 2. Use the creation of a speaker to observe as a model for the process of generating electrical current in a simple generator/motor. 
Author:
Bradford Hill
Relevant NGSS PE:
Estimated Activity Length:
5 hours