| |
| Qualitative
Introduction to Water Pollution Kit |
|
|
|
Students become aware of the significance of
water pollution by chemical examination of natural and treated water.
Qualitative tests are performed by students on natural and treated water,
and the degree of pollutant can be compared by the depth of color. Ten
common pollutants are identified, as well as the determination of pH.
Tests include: ammonia, chlorine, chromium, copper, cyanide, iron,
nitrate, phosphate, silica, sulfide, and pH determination. A complete
teacher’s instruction booklet with background information is also
included. Complete for 50 students. |
|
|
| Water
Treatment & Filtration Kit |
|
|
|
Water that enters homes and other public
buildings may be utilized for a variety of purposes but it is assumed that
one of those purposes will be consumption. Water delivered by municipal
water supply must be treated prior to delivery to insure health and
safety. In this activity, students will perform several of these steps on
“raw” water (that you prepare) and examine the changes in the physical
properties of the water after each step. Kit contains enough materials for
15 groups of students. |
|
|
| Electrochemical
Remediation of Wastewater |
|
|
|
Allows students to perform an alternative,
greener approach to wastewater treatment. Water is a finite resource and,
once polluted, it cannot be set aside in the hopes that the environment
will “make” new, clean water. A process growing in attention for
treating wastewater is electrocoagulation: a process carried out by an
electrical charge. Contains enough materials for 15 groups of students. |
|
|
| Biodiesel
Production Kit |
|
|
|
Students perform a two-phase process to
produce small batches of crude biodiesel. The crude biodiesel produced is
of sufficient quality for use in the demonstration of the burning
qualities of both biodiesel and vegetable oil. Included is an optional
small-scale exercise where the students will use a washing procedure to
have students experience the full process of producing biodiesel that
meets quality levels necessary for use in vehicles. Enough materials for
15 groups. |
|
|
| Green
Water Monitoring Kit |
|
|
|
No other test kit on the market compares to
this low-cost, portable, easy-to-use water testing kit. Students will have
fun analyzing sample water for eight different test factors. Comes
complete with all the necessary apparatus, nonhazardous TesTabs®,
diagrammed, step-by-step instructions and color chart. Use this kit to
explore the water quality of natural aquatic systems nearby. Contains
everything you need to test for phosphate, temperature, turbidity,
coliform bacteria, pH, dissolved oxygen, biochemical oxygen demand, and
nitrate. Can be used to test fresh, brackish, or saline aquatic
environments. Enough materials for 5-6 students. |
|
|
| The
Tapwater Tour |
|
|
|
A hands-on science curriculum and water test
kit designed for elementary and middle school classes. The Tapwater Tour
is divided into five exciting units which help students discover what is
found within their home tap water. The students conduct their own tests
(pH, chlorine, hardness, iron, copper) using simple and safe reagent
tablets in unit-dose form. The curriculum materials provide the instructor
with easily-understood relationships between good and poor water quality.
Each of the five units comes with complete lecture materials, illustrated
handouts, teacher tips, test procedures, and fascinating wrap-up games to
reinforce key concepts within units. Complete for 50 students. |
|
|
| How
Clean is the Water We Drink and the Air We Breathe? |
|
|
|
Microbes are in the water we drink and the
air we breathe. Bacterial concentrations (referred to as bacterial counts)
vary depending on the source of water and air. Includes: two bottles of
Ready Pour Agar, three sleeves of Petri plates, two 10 ml pipettes, one
pack of 1 ml pipettes, 20 ml sterile water sample, and a teacher’s guide
with comprehensive student activities.
*NOTE: Experiment kits are for 10 stations working in groups of 2
or 3. |
|
|
| Water
Treatment Activity Model |
|
|
|
This model sewage treatment plant graphically
demonstrates the key concepts of water treatment. Students will get a
firsthand view of the physical, chemical, and biological processes
compromising sewage remediation. Students build their own water treatment
plant, complete with filtration, aeration, bioremediation capabilities.
Durable plastic model is accompanied by everything needed to test and
treat water, including filter paper, simulated pollutants, bioremediation
agents, air pump, test materials, and student and teacher’s guides.
Size: 13-1/4" L x 4-1/2" W x 17-1/4" H. |
|
|
| Bioremediation
by Oil Eating Bacteria |
|
|
|
The science of biodegradation, the process by
which compounds are naturally broken down by microbes, is examined in this
experiment. This naturally occurring process can be enhanced by
bioremediation to minimize the catastrophic effects of such things as oil
spills. Students will grow a mixture of oil eating bacteria and
demonstrate how the enzymes produced by these microbes digest hydrocarbon
molecules, causing degradation. Experiment includes: complete
instructions, background information, study questions, oil-eating bacteria
pellets, growth medium, and pipets. |
|
|
| Mystery
Spill |
|
|
|
What can be done to insure the safe arrival
of hazardous cargo across highways? In this simulated highway spill of
hazardous materials, students carry out a series of chemical and physical
tests on several white powders, one of which represents a hazardous
material. By comparing the results of their tests, students identify the
“mystery spill” material then discuss safety issues involving the
transportation, storage, and use of hazardous materials. |
|
|
| Air
Quality Lab |
|
|
|
Air pollution causes a wide variety of health
concerns and comes from many different sources. These include man-made
origins such as factories and automobiles as well as natural sources such
as wildfires, microorganisms; windblown dust and pollen; and volcanic
eruptions. Your students will perform various hands-on activities to
identify air pollution sources and the types of pollutants they emit. Then
they’ll apply their knowledge to develop ways to reduce this
contamination. Your class will also conduct microscopic examinations of
bacteria, fungi, and other microorganisms found in the air. For 40
students. |
|
|
| Environmental
Test Lab Kit |
|
|
|
Perform experiments just like those used by
government agencies. Nine different tests of the air and water around us
can be performed with the Environmental Student Test Lab that produce
clear and visible results. Your students will be interested to know that
their experiments duplicate those actually carried out by state and
federal agencies. Five water tests look for dissolved oxygen, hardness,
chloride, phosphate, and pH. The kit also gives you four air tests for
suspended particles, smoke density, concentration of chemicals, and carbon
dioxide. These tests are easy to do and produce clear, visible results.
Many of the tests give or estimate quantitative results. The kit includes
eight test chemicals, test equipment, two charts, and a reproducible
laboratory manual. This kit is an excellent introduction to air and water
evaluation.
Environmental Test Lab Chemical Refill Kit |
|
|
| Global
Warming Poster Set |
|
|
|
Global Warming and climate change are complex
topics. These laminated posters use striking picture and explanatory text
to increase awareness of the important scientific and social issues
involved. Includes ten 18" x 24" posters. |
|
|
| BioQuest®
River to the Sea Model |
|
 |
This is an environmental test simulator
designed especially to show how the stream system is an important part of
the watershed. This tank topper will fit on a standard, 20-gallon aquarium
(20-gallon aquarium, SA04495M, sold separately). Inserts and pumps for
pond and delta simulation are included. Teacher’s guide includes
instructions for set up and studies for both standing water (lentic) and
running water (lotic) habitats. Examples of topics covered include:
formation of sand delta, effects of soil types on delta formation,
positive effects of a marshland system as a filter, plant and animal
adaptation to varied freshwater ecosystem, and environmental studies
limited only by the imagination! Can be easily disassembled and cleaned
for storage. |
|
|
| 4-Way
Analyzer |
|
|
|
The 4-Way Analyzer measures the most
important aspects of plant health: light, soil, moisture, soil pH, and
soil fertility. The light reading determines the light level where the
plant is located. The moisture portion reads the moisture level where it
counts, at root level. Soil pH is measured on a scale of 0-9, and a
combined nitrogen-phosphorous-potash reading is determined on a “too
little,” “ideal,” and “too much” scale, based on the U.S.
Department of Agriculture standards. |
|
|
| Kelway
Soil Acidity and Moisture Meter |
|
|
|
Test soil in 3 minutes! This tester is
designed so that by the action of the electricity it generates it will
give an accurate pH reading of the soil on the outside scale of the dial,
and will show moisture content of the soil on the inner scale. The
electrical energy to move the indicator is due to a potential difference
between two electrodes which act to show pH value. These electrodes are
constructed of special metal plates and alloys which activate each other
and in turn set up an intricate electrical process generating energy that
activates the indicator. Has no batteries to run down or replace. Easy to
use, just push tester vertically into soil to a depth at least covering
the metal plates. Read the pH on the upper scale (3.5, 4, 5, 6, 7, 8 pH
values). Once pH reading is taken, push moisture button on side to obtain
the moisture reading (0, 50, 70, 100% moisture). Only 6-1/2" long,
weighs 8 oz. Carrying case with belt loop; complete instructions. |
|
|
| Soil pH
Meter |
|
|
|
With this unique measuring instrument, simply
probe the soil, compost, or potting soil mix to almost instantly determine
pH levels. Registers from 3.5 to 9.0. Accurate to within .5 pH. Includes
information that gives the pH preferences for more than 400 flowers,
shrubs, vegetables, fruits, and houseplants. Meter styled with probe on
flexible cord. |
|
|
| 120 cm
Turbidity Tube |
|
|
|
Measure water’s degree of visibility with
this turbidity tube. Measures turbidity in streams where a secchi disk
can’t be used. The clear polycarbonate tube is 60 cm (23-1/2") in
length and features a centimeter scale on one side and a secchi disk
design, 4.5 cm (1-3/4") in diameter, on the bottom. The secchi design
is screwed to a rubber stopper that removes for cleaning. Drain the tube
with the drain hose and attached finger crimp. Ideal for GLOBE program. |
|
