Solar Charger Diagram

Designing a Solar Charger

Grades:
10-12
Lesson Number:
4
Description:
In this lesson, students will further explore the potential and challenges related to using photovoltaics to supplement the power needed to charge batteries in BEVs. Students will be provided with a 12 V lead-acid battery and several 3 V, 1.5 A solar modules...
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Learning Goal(s):
1. Students will explore the role of series and parallel wiring as they pertain to voltage and amperage. 2. Students will explore the processes involved with charging batteries and relate these processes to voltage and amperage. 3. Students will test photovoltaic modules to identify voltage and amperage outputs. 4. Students will design a system of wiring 3 V, 1.5 A modules together as a means to charge a 12 V lead-acid battery 5. Students will predict and test the effectiveness of their designed solar charger.
Author:
Clayton Hudiburg
Estimated Activity Length:
4 hours
Car Charger Schematic

Designing a Solar Phone Charger

Grades:
7-12
Unit:
Lesson Number:
7
Description:
This is the culminating activity for the unit “Off the Grid.” Students will be given some restricted parameters around which to design a solar powered battery operated phone (or other USB device) charger . They will charge the AA battery packs that have been...
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Learning Goal(s):
1. Students will be able to design a device that can charge a phone with 4 hours of sun a day. 2. Students will use collected data and be able to support their design – i.e. the data will show that the unit will produce enough energy to charge a phone given it receives 4 hours of sun a day. 3. Students will also be able to calculate efficiency from their power calculations. 4. Students will be able to compare efficiencies of their circuit to others tested in this unit. 5. Students can calculate how much energy 4 hours of sunlight can produce on the solar modules they will use.
Pedagogy & Practice:
Author:
Brett McFarland
Relevant NGSS PE:
Estimated Activity Length:
5 hours
Car Charger Schematic

DC to AC to DC Efficiency

Grades:
7-12
Unit:
Lesson Number:
5
Description:
This is part of the Off the Grid Unit. This lesson will continue to deal with efficiency of USB charging devices, but this time we will be using an inverter in order to create AC voltage from a battery pack, and then use a standard AC charger (what you would...
Energy Content:
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Learning Goal(s):
1. Students will use multimeters to measure voltage and current in circuits. 2. Students will use collected data and be able to make power calculations from this data. 3. Students will also be able to calculate efficiency from their power calculations. 4. Students will be able to compare efficiencies in order to identify the circuit that is most efficient. 5. Students will be able to make circuits from a diagram and vice versa. 6. Students will know what an inverter is and what it does.
Pedagogy & Practice:
Author:
Brett McFarland
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
3 hours
Car Charger Schematic

Exploring Buck and Boost Converters

Grades:
7-12
Unit:
Lesson Number:
4
Description:
This lab uses a variety of voltage conversion devices to output 5 Volts, the requirements for a USB charger such as for a cell phone. Students will take data on these devices and calculate, graph and compare efficiencies of different devices. Devices used in...
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More Details Less Details
Learning Goal(s):
1. Students will use multimeters to measure voltage and current in circuits. 2. Students will use collected data and be able to make power calculations from this data. 3. Students will also be able to calculate efficiency from their power calculations. 4. Students will be able to compare efficiencies in order to identify the circuit that is most efficient. 5. Students will be able to make circuits from a diagram and vice versa.
Pedagogy & Practice:
Author:
Brett McFarland
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
3 hours
Car Charger Schematic

Phone Charger Efficiency

Grades:
7-12
Unit:
Lesson Number:
3
Description:
This is part of the Off the Grid Unit. In this lesson students will explore the concept of efficiency , and how to take data in order to calculate the efficiency of various cell phone or USB charging circuits. They will complete this process by using a...
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More Details Less Details
Learning Goal(s):
1. Students will use multimeters to measure voltage and current in circuits. 2. Students will use collected data and be able to make power calculations from this data. 3. Students will also be able to calculate efficiency from their power calculations. 4. Students will be able to compare efficiencies in order to identify the circuit that is most efficient. 5. Students will be able to make circuits from a diagram and vice versa.
Pedagogy & Practice:
Author:
Brett McFarland
Relevant NGSS PE:
Estimated Activity Length:
2 hours
Arduino Angler Design

Illuminate Me: Merging Conductive Sewing, Technology, and Solar Power

Grades:
7-12
Description:
Light up your clothing using solar power! For this unit, students will attach thin, flexible solar modules to a bike helmet and recharge NiMH rechargeable batteries for a renewable energy battery pack. The rechargeable batteries will be used to light up...
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Learning Goal(s):
1. Students will design and sew a wearable circuit using conductive thread. 2. Students will program a wearable microcontroller to light up garment with bright LEDs. 3. Students will incorporate solar power into a wearable garment project by recharging NiMH batteries for a renewable energy battery pack. 4. Students will apply knowledge of circuitry and energy transfer to maximize design.
Author:
Kristy Schneider
Estimated Activity Length:
10 hours
Solar Mini House

Mini Solar Houses Unit

Grades:
4-6
Description:
In Lesson 1, the lesson focuses on understanding how the angle and orientation affect the amount of energy that is generated through use of a solar cell. Paper azimuth finders, Keva Planks, and multimeters will be used in order for students to draw...
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Learning Goal(s):
1. Students will understand how to use an Azimuth finder to determine the direction and altitude that solar modules will face. 2. Students will learn how to describe why a solar module is pitched at a particular angle. 3. Students will understand how to measure the voltage and current for an electrical energy source. 4. Students will learn how to build a circuit that will light a light bulb with a switch and without a switch. 5. Students will understand that the electricity flows through a circuit from an energy source to a load. 6. Students will understand the difference between open and closed circuits. 7. Students will understand the similarities and differences between solar cells and batteries as an energy source. 8. Students will understand how electricity flows through a circuit (from energy sources to loads) with more than one source and more than one load. 9. Students will understand how to build series and parallel circuit and the characteristics of each. 10. Students will learn to power both a light and a fan. 11. Students will learn how to find a fault in a circuit. 12. Students will understand that the electricity flows through a circuit from an energy source to a load. 13. Students will understand the difference between open and closed circuits. 14. Students will identify the causes and solutions to various complications that arise in the construction of circuits. 15. Students will use the design process to create a roof to hold an adequate number of solar modules to power an LED and a fan. 16. Students will understand how to make a geometric net (a 2D drawing that when folded creates a 3D shape) for designing a roof.
Author:
Beverly Satterwhite
Estimated Activity Length:
8 hours
All American Sun Oven

Heat Conduction of Different Materials

Grades:
4-5
Unit:
Lesson Number:
10
Description:
After a demonstration using Amazing Ice Melting Blocks, students will conduct small temperature experiments using different types of materials. They will use what they learn to build their solar ovens and additionally answer discussion questions in their...
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Learning Goal(s):
Students will learn that the material of the item that they choose to cook their egg in matters because different materials conduct heat differently. Students will compare insulators with conductors. Students will determine the purpose of conductors within a solar oven.
NGSS Science and Engineering Practices:
Author:
Debbie Abel
Other Subjects Covered:
Estimated Activity Length:
50 min
Kill-A-Watt_Meter

Energy Efficiency - Lighting

Grades:
4-5
Unit:
Lesson Number:
4
Description:
In this lesson, students will learn how to read light bulb packaging (lighting facts) and do a whole class experiment comparing a 60-watt incandescent to an equivalent CFL and an LED bulb. This experiment will be conducted using a kil-o-watt meter, engaging...
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Learning Goal(s):
Students will understand what energy efficiency means, and learn how to choose energy efficient light bulbs. Students will determine which lightbulbs are the most efficient. Students will understand how energy efficiency relates to energy generation and climate change.
Author:
Debbie Abel
Relevant NGSS PE:
Estimated Activity Length:
50 min
Pollution

Non-renewable Energy/Global Warming/Pollution

Grades:
4-5
Unit:
Lesson Number:
3
Description:
NOTE: THIS LESSON RELIES ON EPA CLIMATE CHANGE RESOURCES THAT ARE NO LONGER AVAILABLE. STUDENTENERGY.ORG PROVIDES A POSSIBLE ALTERNATIVE RESOURCE. This lesson will introduce the students to worldwide problems that we have with energy. (91% of the energy we...
Energy Content:
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Learning Goal(s):
Students will explore why there is a need for energy efficiency and renewable energy. Students will determine how non-renewable and renewable energy are a part of our lives. Students will understand how the greenhouse effect and nonrenewable energy sources relate to climate change.
NGSS Science and Engineering Practices:
Author:
Debbie Abel
Estimated Activity Length:
50 min