educational materials - SPECTRUM Nasco Shopping Mall Divisions

Radiation
Effects on Plant
Growth Lab
Safely explore the
impact of radiation on
plant development.
Students grow seeds
that have been exposed
to various levels of ionizing
radiation. They then
monitor the growth of
the resulting seedlings
and observe the effect
that radiation has on
seed germination, seedling development, and plant growth. Students will come to
understand what radiation is, how it can cause mutations, the differences between
ionizing and non-ionizing radiation, and the effects of ionizing radiation and varying
levels of radiation exposure on plants. Addresses National Science Education Standards
A, B, and C. For 40 students. Grades 7-10. Sh. wt. 4.50 lbs.
SB48361M — $83.25
Refill for Radiation Effects on Plant Growth Lab. Sh. wt. 1.25 lbs.
SB48362M — $45.20
Giant Flower Dicot Model
Your students will discover the
arrangement of floral components, and
the reproductive function of flowers. The
petals, sepals, and stamens are detachable;
students can begin the investigation with
the model disassembled and “build” the flower
as they learn about its parts and their functions.
Floral structures are number-coded for identification
in the key which accompanies the model.
Overall dimensions: 17" x 14" x 10". Grade 5 through
college. Sh. wt. 1.90 kgs.
SB33511M — $242.75
Stem Model of
Dicotyledon
Modeled after the sunflower, this
one-year dicot stem gives anatomy in
cross, radial, and tangential sections.
Shows epidermis, cork layer, phloem
region, cambium, xylem region, pith,
and other important structures.
Enlarged 45 times. Constructed of
plastic and mounted on a wooden
base. Includes explanatory key.
Dimensions: 37 cm x 27 cm x 19 cm
(14½" x 10½" x 7½").
Sh. wt. 2.98 kgs.
SB25206M — $59.45
Biology
Live Materials / Supplemental Items
Plant Cell Model
Simple for elementary level students yet comprehensive enough for middle school, this
colourful teaching model was designed specifically for hands-on use. Made of resilient,
nontoxic EVA foam to withstand years of active investigation. Comes with a thorough, detailed
teacher’s guide including five inquiry-based lab activities, reproducible worksheets,
complete background information, cross-curricular extension activities, assessment ideas,
and more. Topics include cell structure and function, osmosis, photosynthesis, pigments,
and more. Elementary and middle school. Sh. wt. 1.56 kgs.
SB31408M — $86.30
Flower Model
This colourful teaching model was designed specifically for hands-on use with students of
all ages. Made of resilient, nontoxic EVA foam. Removable pieces stimulate problem-solving
skills and develop small motor skills. The detailed teacher’s guide includes complete background
information, reproducible worksheets, cross-curricular extension activities, assessment
ideas, and more. Sh. wt. 1.59 kgs.
1700M — $75.95
Raised Relief
Flower Model
Shows basic structural elements
of a typical flower — petal, sepal,
stem, pistil, stamen, pollen grain
with pollen tube reaching ovule
— enlarged, dissected, and/or cut
away. The 18" x 24", three-dimen-
sional model is of lightweight,
sturdy construction. Comes with a
teacher activity binder that includes
lesson plans for both class and indi-
vidual study, blackline masters, and
a transparency. Sh. wt. 1.36 kgs.
SA02745M — $160.60
www.education.spectrum-nasco.ca
Stem Model of
Monocotyledon
This model of corn gives details of cellular
anatomy of the generalized monocot
in cross and longitudinal section. Shows
important structures such as cuticular
layer, epidermis, thick-walled mechanical
tissue, fundamental parenchymatous
tissue, and the details of closed vascular
bundles. Enlarged 45 times. Made of
plastic and mounted on a wooden base.
Key included. Dimensions: 42 cm x 43
cm x 15 cm (16½" x 17" x 6").
Sh. wt. 3.15 kgs.
SB25199M — $59.45
Leaf Structure Model
Magnified 45 times from a lima bean
leaf. This model vividly shows the
transverse and longitudinal sections,
as well as the upper and
lower surfaces of a typical leaf.
The mesophyll includes palisade
parenchyma and spongy parenchyma.
Both surfaces are shown
with stomas and guard cells. Also
shown is the detail of vascular
bundles, such as xylem, phloem,
and the veins. Complete with key. Plastic construction.
Dimensions: 45 cm x 22 cm x 16 cm (17½" x 8¾" x 6¼"). Sh. wt. 1.50 kgs.
SB25207M — $55.05
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