As a class, students use a low-cost air quality monitor (a rentable “Pod”) to measure the emissions from different vehicles. By applying the knowledge about combustion chemistry that they gain during the pre-activity reading (or lecture presentation, alternatively), students predict how the emissions from various vehicles will differ in terms of pollutants (CO2, VOCs and NO2), and explain why. After data collection, students examine the time series plots as a class—a chance to interpret the results and compare them to their predictions. Short online videos and a current event article help to highlight the real-world necessity of understanding and improving vehicle emissions. Numerous student handouts are provided. The activity content may be presented independently of its unit and without using an air quality monitor by analyzing provided sample data.

Using three-dimensional scaffolds, these materials address the following topics:  - Atoms, elements, and molecules.- Properties of matter and energy. - Reasoning across systems and scale- Conservation of matter- Combustion as a rearrangement reaction- Chemical bondsEach packet is broken into five parts - data dive, core ideas, investigations, asssessments, and life connections. Formative assessments and checkpoints are embedded throughout each packet. The final packet prepares students for a summative assessment, with a provided practice assessment.Implementation instructions are embedded for each component of each packet. PDFs are included as attachments (in case the file formats are altered by this system).