What do I do in this protocol?

This protocol measures the amount of water in soil using a simple procedure.

In this process you will:
1) Identify a site.
2) Collect wet soil.  Dry it under a heat lamp.  Measure weight of dry soil.
3) Collect standardized samples for soil density comparison.
4) Submit your data to GLOBE.gov.

What do I need to participate?

A site with a homogenous surface area that is at least 10′ by 10′: Once you have chosen a site the first step is to tell us about your site.

Some scientific equipment: A gram scale, graduated cylinder, heat lamp, and a can or ring:  You can buy the standard instruments in a kit here.  Youth groups or individual youth participants can apply to receive a free set here.

Miscellaneous household items: Ziploc bags, a garden trowel, a ruler, sharpie pens, paper, and pencil to record data along the way.

Time: Collecting a sample is quick and easy, but it takes a couple days for a sample to dry. You will have to be able to check on the sample from time to time to find when it is dry, then record a measurement.

A computer or phone:  You will data using the same data form for trowel samples and can samples.  You will need access to the internet to do that.  [Make the form a bookmark so you can return easily!]  Not sure what the difference is between the sample types? Watch the training video to learn more.

How do I do it?
This video makes learning the protocol simple.  Questions that will arise can be asked at smap@scistarter.com

SciStarter SMAP Training Video from Sheri Potter on Vimeo.