Hot Pack

Engineering a Hot Pack

Grades:
7-8
Lesson Number:
5
Description:

Through a series of inquiry activities, students will discover the properties of the chemical reaction of dissolving CaCl 2 in water, the effect of stirring, and of adding baking soda and sodium polyacrylate crystals. Once initial data is collected,...

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Learning Goal(s):
Students will collect data to characterize a chemical reaction Students will identify the criteria and constraints of an engineering challenge. Students will design and build a hot pack that meets the criteria of the project. Students will collect data to support their proposed design. 
Author:
Melody Childers
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...

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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

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...

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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
Estimated Activity Length:
2 hours

Part 2 - Lesson 2: Wind Energy

Grades:
6-12
Lesson Number:
5
Description:

Students will learn about wind and how wind varies across geographies. Students will use Vernier Wind Turbine kits or homemade wind turbines to experiment with blade angles and wind speed. During experimentation, students will collect data as blade angles...

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Learning Goal(s):
1.Students will conduct an experiment where blade angles are the variable and wind speed is constant.2.Students will conduct an experiment where blade angles are constant and wind speed varies.3.Students will collect and analyze data to provide a conclusion to the questions: What is the optimal blade angle for generating the most energy? What is the optimal wind speed for generating the most energy?4.Students will research prevailing winds and use a provided map of their region to indicate wind speed and direction.5.Students will propose locations for wind farms based on optimal energy generation and zoning restrictions.6.Based on their proposals, students will determine a range of potential kilowatt generation from wind power.
Author:
Jonathan Strunin
Estimated Activity Length:
10 hours

Keeping it Cool With Solar - Structure Test: How Cool Are We?

Grades:
K-2
Lesson Number:
5
Description:

This lesson is designed for one 30-45 minute session. Students are shown how thermo infrared thermometers work. Teacher uses infrared thermometer and has students record the ground temperature outside and inside their structure. Students record and...

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Learning Goal(s):
Students build shade structures that will optimize cooling the earth’s surface from sunlight. Students collect and analyze how cool the earth’s surface is inside their structure.
Author:
Mark Lewin
Relevant NGSS PE:
Other Subjects Covered:
Estimated Activity Length:
0 sec

Keeping it Cool With Solar: Add Solar Panel Redesign, Rebuild, Retest

Grades:
K-2
Lesson Number:
6
Description:

This lesson is designed for one 60-minute session. Students will share and discuss results. Students are shown solar panel and fan and are asked, “Using solar technology, how might we make the ground in our structures even cooler?” Using the solar panel...

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Kidwind Small Water Pump

Designing a Faster Water Pump

Grades:
2-5
Lesson Number:
7
Description:

Students use all their prior knowledge to design and construct a water pump that can pump 1 cup of water the fastest.

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Learning Goal(s):
Students will be able to use available tools to design and test a solar water pump, refine their design, test and finally evaluate their efforts. Through this process students will understand and gain experience with the engineering design process.
Author:
Mike Hellis
Estimated Activity Length:
1 hour
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...

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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
Estimated Activity Length:
5 hours

Cost Effective Solar Cells: Titanium Dioxide Solar Cell Construction and Testing

Grades:
9-12
Lesson Number:
7
Description:

This lesson is designed to be completed in two 80-minute sections. The teacher will show a basic procedure and video. The teacher will facilitate the construction of Organic Dye-Sensitized solar cells on coated glass plates with Titanium Dioxide. A fume...

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Learning Goal(s):
Students will construct titanium dioxide coated “raspberry juice” solar cellsStudents will test titanium dioxide coated “raspberry juice” solar cells under various conditions 
Author:
Tom Wolverton
Estimated Activity Length:
3 hours

Part 3 – Lesson 1: A Plan for Renewable Energy Goals

Grades:
6-12
Lesson Number:
7
Description:

Students will utilize their home energy audits from Part 1, the information they gathered from the wind and solar assessments in Part 2, and the knowledge they gained from the solar project in Part 2 to devise a plan for your city or town to meet renewable...

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Learning Goal(s):
1.Students will utilize previously acquired information about energy needs to create a renewable energy proposal for their city or town.2.Students will perform a solar energy audit on their homes and use class averages to calculate the amount of renewable energy that can be generated on residential properties.3.Students will assess where commercial and local government solar projects can occur within the city or town to meet the energy needs for non-residential consumers.4.Students will determine potential locations for larger scale wind and solar farms to augment the remaining energy needs of the community.5.Students will prepare a comprehensive renewable energy plan that totals the calculations for potential residential, commercial, and agency renewable energy generation.6.Students will prepare a brief PowerPoint presentation that summarizes their comprehensive plans that will be presented to a panel of elected officials or local experts/stakeholders.
Author:
Jonathan Strunin
Estimated Activity Length:
4 hours