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
US DOE WInd Turbines

Variables Affecting Wind Turbine Power

Grades:
7-8
Lesson Number:
5
Description:

Now that students are familiar with how mechanical electricity generation works, they will build a wind turbine powered by a box fan. Different teams will test different turbine variables to see how the amount of electrical power is affected. After each...

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Learning Goal(s):
• Students will be able to identify and explain at least three variables that affect the efficiency of wind turbines • Students will conduct a scientific investigation to determine which wind turbine configuration will generate the most power
Author:
Craig Marais
Estimated Activity Length:
4 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
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...

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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
Sphero SPRK+

Solar SPRK+: Final Challenge and Presentation

Grades:
6-8
Unit:
Lesson Number:
6
Description:

In this lesson, students will navigate through a maze using their SPRK+ in order to reach the solar charging station. Students will redesign their chariot in order to meet the needs of this new maze in order to carry their solar panels to the charging...

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Learning Goal(s):
Students will combine SPRK+ programming with the construction of a compatible chariot in order to guide their SPRK+ “Mars rover” to carry solar panels to a charging station.Students will present a final project to the class that summarizes their knowledge about the scientific background knowledge tied to this project as well as their design and testing process.
Author:
Deb Frankel
Estimated Activity Length:
8 hours
BioLite

Biolite - Fire to Phone Charging

Grades:
7-12
Unit:
Lesson Number:
6
Description:

This is the 6 th part in the Off the Grid Unit. This lesson continues to look at the efficiency of USB charging devices, but this time we will be using a commercially available camping stove that uses heat to create electricity in order to charge a phone....

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Learning Goal(s):
1. Students will use thermometers and a stopwatch to calculate power. 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 to other circuits tested in this unit. 5. Students will know what the Peltier Junction does.
Author:
Brett McFarland
Relevant NGSS PE:
Estimated Activity Length:
1 hour
Kidwind Small Water Pump

Solar Powered Water Pumping

Grades:
2-5
Lesson Number:
6
Description:

Students use a solar module and other materials in conjunction with a water pump to test how quickly one cup of water can be pumped.

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Part 2 - Lesson 3: Solar Energy

Grades:
6-12
Lesson Number:
6
Description:

Students will work with local government staff or another local energy professional to propose a way to create enough solar power energy to supply the annual energy needs for a real building. Students will be provided with on-site options, and will...

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Learning Goal(s):
1.Students will conduct an experiment to determine how electrical output changes as solar panels as the azimuth and tilts are incrementally changed.2.Students will conduct an experiment to determine how electrical output changes as solar panels are shaded.3.Students will work with the staff from your city or town to calculate the amount of potential electrical energy that can be collected from solar panels based upon the location and size of the system.4.Students will use existing solar data to determine the number of solar panels required to power the building in question.
Author:
Jonathan Strunin
Estimated Activity Length:
6 hours