Each group needs:

• 50-ml (or larger) graduated cylinder
• laboratory-grade metal ware set—suggested dimensions: support stand (8" x 5"), rod (24" height, 12mm diameter), cork lined burette clasp with metal retort ring (2.5" diameter) available at Amazon
• 100 g of soils (one of each type: clay, sand, silt and loam) available at Wards’s Science
• Note: loam is a mix of clay, silt, and sand
• 6 g biochar, available at Amazon
• 91 cm (½ yard) of organza or similar type fabric (for example, silky fabric used in curtains, dryer sheets) available at Amazon 
• stopwatch
• 4 rubber bands
• 200-ml graduated cylinder, for measuring water
• 4–5 funnels (optional), available at Amazon
• mortar and pestle (optional), available at Amazon
• access to a computer with PowerPoint® to view the Measurements with Biochar Presentation; alternatively, print out the slide presentation
• Lab Presentation Rubric

For the class to share:

• scale, such as a scientific scale or simple kitchen scale, to measure 2 g to 50 g
• plastic graduated cylinders or plastic 2-liter soda bottles; students can cut and/or redesign a soda bottle to imitate the functions of a graduated cylinder; for example, turning a 2-liter bottle upside down and using the bottle top as the draining point 
• funnels for pouring soil types into the graduated cylinders
• scissors, for cutting the plastic graduated cylinders or soda bottles
• masking tape and markers, for labeling graduated cylinders