educational materials - SPECTRUM Nasco Shopping Mall Divisions

Soil
110
Earth Science
Classification of
Soil Layers Lab
Investigation
Discover the conditions that
caused your local soils to form!
Students will examine common
soils of North America, determine
how soils are formed, and create
a sample soil profile using the
provided soil horizon cards. They’ll
analyze the soils in the profile and
describe the environmental conditions
that influenced their formation.
Students can also gather local
soils, create a profile, and determine the environmental changes that caused those soils to
form. Easy-to-use, portable, and practical soil cards allow students to construct a soil profile in
the field and then analyze it when they get back to the lab — with far less mess than using
core samples. Enough materials for 40 students. Grades 7-10. Sh. wt. 3.50 lbs.
SB46898M — $54.70
Soil Test Kits
Contains liquid reagents and equipment
for the given number of tests.
Also includes tests for soil pH, nitrogen,
phosphorous, and potash.
Soil test Kit with 80 Tests. 20 tests
each for soil pH, nitrogen, phosphorous,
and potash. Sh. wt. 0.59 kgs.
C25446M — $32.10
Soil test Kit with 200 Tests. 50 tests
each for soil pH, nitrogen, phosphorous,
and potash. Sh. wt. 1.87 kgs.
C25448M — $123.20
Chemical Composition
of the Soil
This kit allows students to perform chemical
determinations on locally derived soils for
the following components: percentage of
water; soil organic content; pH (hydrogen
ion concentration); reagent tests for calcium,
carbonates, magnesium, and phosphates;
and test paper determinations for potassium,
sulfates, nitrate, ammonium, and iron.
These chemical tests can support a variety
of learning activities when used with earth
science, environmental, and biological topics.
Discussion questions are furnished on
the value of each component to the various
life-forms in and on the soil. Complete for 30
students working in pairs. Sh. wt. 1.50 kgs.
SB09431M — $178.45
C25448M
Combination pH, Nitrate, Phosphorus,
Potassium Outfit
An inexpensive combination soil test kit
designed for individual study projects,
science fair activities, field studies, and
classroom use. It uses a unique reagent
system that eliminates the need for
filtering the soil extract. Step-by-step
instructions. Measurements are made
in graduated plastic test tubes. The test
result readings are measured against
Mylar ® laminated color charts. Enough
reagents are furnished for 30 pH tests,
15 nitrogen tests, 20 phosphorous tests,
and 15 potassium tests. Two booklets, A
Study of Soil Science and the LaMotte
Soil Handbook, provide information
and data for interpretation of test results.
Polypropylene carrying case.
Sh. wt. 1.36 kgs.
C08704M — $61.85
Screen Sieve Kits
Great kits to separate and grade soil and rock
samples in order to determine the make-up of
soil strata. The soil sample is placed in the top
container and agitated through the various
size sieves. Each set of 6" dia., highimpact
plastic sieves includes a bottom
pan and lid.
Six-Sieve Kit. Includes six screen mesh sizes:
5, 10, 35, 60, 120, and 230. Includes teacher’s
guide. Sh. wt. 1.53 kgs.
SB26141M — $118.95
Four-Sieve Kit. Includes four screen mesh
sizes: 5, 10, 60, and 230. Sh. wt. 1.13 kgs.
SB01705M — $83.25
Soil Classes
The separates alone are only the beginning of soil textural study, since they are not
found pure in nature but are always mixed. It is the natural mixture found in the field
and known as soil classes — sands, loams, and clays — that are important. Set of 8 glass
jars on block base. Includes sand, sandy loam, clay loam, peat loam, silt loam, clay, and
muck. Sh. wt. 1.36 kgs.
LS00519M — $45.25
Hoffer Soil Samplers
The world’s most widely used soil samplers. Exclusive drawn probe cup gives an accurate
profile; a true sample of the soil for the entire depth of the sampler. Quick and easy to
use, just push, turn slightly, then pull. Made from top-quality steel tubing, electroplated
with copper, then chromed. This special finish not only gives complete corrosion resistance,
but also keeps soil from sticking to the sampler as it is withdrawn. Sampler is
tempered to tool steel hardness to increase rigidity and strength so cutting edge won’t
bind when it strikes hard objects. The exclusive drawn probe cup cuts a soil core slightly
smaller than the diameter of the tube, enabling the core to rise in the tube without
breakage as the sampler is pushed into the soil. Profile opening 14½".
21" Sampler. Sh. wt. 1.06 lbs. 36” Sampler. Sh. wt. 1.63 lbs.
C08999M — $77.65 C09000M — $86.30
Deluxe Soil Probe
Simplify your sampling
procedures with this
heavy-duty soil probe
with an easy-to-use foot
stand for penetrating hard-to-dig soils. The hand plunger lets you eject a soil sample
from the heavy tube easily and cleanly. This 36" long tool takes a full 10" core sample, 1"
in diameter. This durable instrument is made of heavy-gauge steel, nickel-plated for long
life. Sh. wt. 4.50 lbs.
C09414M — $74.40
Soil Test Kit
Give soil and ponds a checkup
with simple tests that detect levels
of common chemicals. Includes:
comparator box and test capsule for
3-step tests that measure pH, nitrogen,
phosphorous, and potassium.
Sh. wt. 0.56 lbs.
C14572M — $16.40
NASCO Soil Classes
Classic soil kit with safety in mind! All of the eight basic soil types (sandy loam, loam soil,
clay soil, silt loam, muck soil, peat soil, clay loam, and sandy soil) contained in plastic “kid
safety tubes” with safety tube holders included. Learn to identify the characteristics of
the basic soil classes, sands, loam, and clays. Sh. wt. 3.31 lbs.
SB43552M — $58.95
Tel: 1.800.668.0600 Fax: 1.800.668.0602