educational materials - SPECTRUM Nasco Shopping Mall Divisions

Physical Science
Nature of Liquid and Gas
Harbottle
Help students understand the meaning of fluid pressure
and pressure reduction. A Harbottle is a round
glass container with a balloon inside and stretched over
its opening. A hole in the flattened base is fitted with a
rubber stopper. Students are amazed when the balloon
remains inflated inside the bottle even though it is not
tied off or sealed. Includes instructions.
Grade 7 and up. Balloon not included.
Sh. wt. 1.25 lbs.
SB45692M — $33.95
Osmosis &
Diffusion Kit —
Lab-Aids
® No. 22
This kit allows students to
observe diffusion through a
membrane in two directions at
the same time. In addition, they
can observe the selective perme-
ability of a membrane — some
substances can pass through a
membrane and others cannot.
Complete for 30 students.
Sh. wt. 1.79 kgs.
SA08212M — $104.15
Accent: What is Density? Kit
Model solids, liquids, and gases and watch how they behave to show what density means
in the real world. Students will create models of a substance in different phases and test
models for “sinkability” and “floatability” and relate this to density. By modeling gases,
liquids, and solids, students will realize that it is a volume, not weight, that determines
the behavior of a substance. The kit includes Density ID set with 12 unique samples in
linseed-coated hardwood base (aluminum, brass, copper, acrylic Pyrex, rubber, Delrin
plastic, PVC, Teflon, tekaform, poplar, and oak), box of 250 toothpicks, 300 blue foam
squares, 12 plastic containers, four cans of Magic Dough in four colours, and instructions.
Grades 6-12. Sh. wt. 8.69 lbs.
SB42308M — $118.95
Gas Law Apparatus
with Temperature Gauge
Use this apparatus to experiment with the
elastic properties of a measured quantity of gas.
This unit makes the understanding of Boyle’s
Gas Law easy and helps to show the relationship
between the pressure, temperature, and
volume of a gas that is constant. Simply twist
the handles to compress the air and read the
volume, temperature, and pressure from the
scales. Repeat the process to confirm that the
relationship stays the same. Grades 9-12.
Sh. wt. 3.50 lbs.
SB45488M — $95.15
BEST
SELLER
Density of Liquids Lab Investigation
Dramatic, visual investigation of how density causes liquids to behave! Engaging demonstration
provides your students with a firsthand look at the density properties of liquids.
Your class will design and create their own multicolored density column — layer-by-layer!
Then they’ll use their creation to solve a problem! After your students use their observations
to understand the principles of density, you can challenge them to extend their
exploration by creating a coloured lava tube. The investigation’s inquiry-based approach
allows students to go beyond rote learning. In the process, they’ll stimulate their curiosity
and strengthen their logical thinking capabilities. Grades 7-10. Sh. wt. 4.50 lbs.
SB43560M — $94.00
Floating Density Spheres
A set of six solid plastic spheres and all
the materials needed for producing and
using a density gradient. The spheres
float at different levels in the gradient
as a result of their different known densities.
The densities of additional small
material specimens (included) may be
determined by dropping them into the
gradient and noting which sphere they
float alongside. Requires water and
corn syrup, sugar, or salt (not included).
Grades 8-12. Sh. wt. 1.75 lbs.
SB48430M — $14.90
192
Drinking Bird
This fascinating education toy has been around
for years! Dip its head into a glass of water,
stand the bird up, and it never stops drinking.
Great discussion starter in the
classroom. Explanation included.
Sh. wt. 0.82 kgs.
SB33734M — $13.10
Archimedes’ Principle Apparatus
Demonstrate Archimedes’ principle. Larger model has a much larger
capacity than traditional models, offering higher accuracy and
easier operation. The cup and white nylon cylinder have marked
divisions, which allow the students to repeat the experiment with
different volumes. Activity guide included. The apparatus also
requires a 200 g spring scale, an overflow can, and a
beaker (not included). 3" x 3" x 3". Grades 7-12. Sh. wt. 7 lbs.
SB48235M — $8.75
Tel: 1.800.668.0600 Fax: 1.800.668.0602