Engineering Design

·       Students will design 3D models using Tinkercad software.·       Students will define the problem of plastic trash islands.·       Students will describe possible solutions to the problem of plastic trash islands.·       Students will research the plastic trash problem and create google slideshows the problem and how we might fix it.·       Students will investigate different ways to build structures that both float and hold weight.·       Students will build a model of a device that could collect plastic from the ocean.·       Students will test the models they build.·       Students will communicate their results from scientific inquiry to identify factors that are important to optimizing the design of the plastic collecting device.

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

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.

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.