High schoolers continue to explore and understand soil characteristics
as they follow-up preliminary field studies and laboratory investigations
with an experiment on soil texture. Applying their findings to the
real world, they keep ongoing notes and records in Soil Journals and
Lab Reports and begin an e-mail correspondence with a university based
For more about Special #3 from
Techno Gardening, e-mail
Aida Quinones, author and
AT&T Teacher Disseminator.
Research, analyze and evaluate environmental challenges through
Research and apply the unifying concepts of science.
Use technologies to obtain, utilize and present information.
Students collect enough soil from the school grounds and neighboring
sites to fill a gallon-size plastic bag. For this lab investigation
they prepare to analyze the texture of a soil sample in order to discover
the ratio of its different-sized mineral particles. As they describe
the sand, silt, and clay that make up the texture of
soil, they begin to understand how soil
ingredients affects the ability of soil to hold
water and resist erosion. When students
complete this Lab Investigation, they
will be able to determine and describe the
Soil Ratios and Types.
By proceeding with an educational campaign to alert younger gardeners
about the importance of analyzing soil for school gardens and how
to properly dispose of toxic materials, students continue to improve
the local environment.
Students continue to research careers as soil
conservation technician, soil analyst,
agronomist, soil consultant, farmer,
Applications in Biology/Chemistry, 1994: Center for Occupational
Research and Development , Waco, Texas; LaMotte Soil Handbook,
Chestertown, MD; gallon-size plastic bags, bottles with cap, soil
samples, tap water, spatula, cardboard, metric ruler, funnel, newspaper
Ongoing Internet research and
documentation of work with PowerPoint
lead students to e-mail a university soil
scientist and begin a dialogue about their
Tests and frequent checking of Soil Journals and Answers in Lab
Report and Soil Analysis continue
to assess student understanding of soil science.
Students log on two more soil-related sites: