Interested in Spectral Challenge? Not sure how to get started? Browse these steps, then pick and choose a sequence that works for you and your community!

###Figuring out what you are interested in###
Think about what environmental contaminants you're concerned about. For instance, lead, crude oil, PAH - polyaromatic hydrocarbons, e. coli bacteria, and many others.

Consider whether these contaminants are elements, molecules, biological, other? A rule of thumb is that the simpler the chemical structure, the simpler the spectrum. Biologicals change over time, so perhaps it's better to start with elements and molecules.  

###Getting ready with sample containers###
Get ahold of a clean glass container, perhaps even order some cheap sterile glass containers from a science supply website to avoid soap residue from handwashed tupperware ;). A container with flat sides and bottom will make it easier to shine light through. 

###Collecting known reference samples###
Think about where you could get a sample of these contaminants. 

* If you are thinking about fertilizer runoff from nearby farms, consider going to a farm supply store and buying a small quantity of common fertilizer. 
* If you are concerned that fuel from a local waterfront fuel depot spilling into your waterways, you could go to the depot and ask the staff for a small sample. 
* If you suspect lead in your soil, go to the fishing section of a local store and buy a lead fishing weight. 

###Inspirational quote!###
“If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.” ― Nikola Tesla