educational materials - SPECTRUM Nasco Shopping Mall Divisions

Physical Science
Nature of Heat
Convection Apparatus
Designed for studying convection currents in the air, this
apparatus consists of a metal box with glass front and
two acrylic chimneys mounted on the top. Convection
currents visible through the glass front are produced by
a candle placed under one chimney and a smoke-producing
material held at the mouth of the other chimney.
Sh. wt. 0.99 kgs.
S00185M — $36.60
Specific Heat Specimen Set
Set of 4 consisting of aluminum, copper, stainless steel,
and zinc. Each cylinder is 19 mm in diameter. The length
of the cylinders is such that all are of an equal weight,
since their masses are equal, their relative heat capacities
are directly proportional to their specific heat. Each cylinder
has a hook so it may be lowered into a calorimeter.
Sh. wt. 0.40 kgs.
SA05697M — $23.75
Double-Walled Calorimeter
A calorimeter with a double-walled cover will minimize
heat loss. The inner and outer vessels are made of aluminum.
The calorimeter has a stirrer and support for the inner
vessel. Inner vessel capacity: 300 ml. Sh. wt. 0.25 kgs.
SB13895M — $12.30
Compound Metal Bar
Two metals (nickel and stainless steel) of different heat
expansion coefficients welded together and mounted in
wooden handle. Demonstrates unequal expansion of different
metals by bending when heated. Sh. wt. 0.06 kgs.
S00188M — $5.90
Pulse Glass
Designed for demonstrating that vapor pressure increases
when temperature increases. Apparatus consists of two
glass bulbs which are connected with a glass tube and
contain a coloured, volatile liquid. Holding one of the
bulbs in your hand causes the evaporation of a portion
of the liquid, which forces the liquid into the other bulb.
CAUTION: Only operate using hand heat. Sh. wt. 0.88 lbs.
SA09087M — $9.90
Ball and Ring
Brass ball, ¾" dia., fits into brass ring. Ball passes freely
through ring when both are at same temperature. After
application of heat, as little as 100° C change in tempera-
ture, the ball cannot pass through the ring until it cools or
until the ring is heated. Wooden handles. Sh. wt. 0.29 kgs.
SB07985M — $10.70
Radiation Can Set
An affordable and simple way to study absorption, emission,
and Newton’s Law of Cooling. These two cans are
identical except for colour: one is black and the other is
the natural, shiny finish of the can. With this set, students
can determine which can is a better emitter and which is a
better absorber. For absorption experiments, fill with cold
water; for emission experiments, fill with hot water. A hole
is provided in the top of the can for thermometers (not
included) for measuring changes in water temperature.
Sh. wt. 0.29 kgs.
SB26244M — $16.10
Ice Melting Set
An interesting method of proving the difference in heat
conductivity in different metals. Place an ice cube on each
of the two black blocks at room temperature and watch as
one ice cube melts faster. The black blocks look the same
but one is made of aluminum and the other is made of
plastic foam. Set shows how aluminum is good conductor
of heat, while the foam is not. Sh. wt. 0.40 kgs.
SB39159M — $23.75
174
Liquid
Convection
Apparatus
This rectangular, 7½" x
9½" glass frame has an
opening at the top for
filling with water. When
clamped upright and
heated at the bottom
corner, students can
visualize the circulation
of water in a hot water
system. Required but not
included: food colouring,
heat source, and stand.
Grade 8 and up.
Sh. wt. 2.25 lbs.
SB46998M — $16.10
Tel: 1.800.668.0600 Fax: 1.800.668.0602
Conductometer
Demonstrates the conductivity of five metals: silver nickel,
steel, aluminum, copper, and brass. Hub is stationary, and is
mounted on a plated steel rod with wooden handle.
Sh. wt. 0.20 kgs.
S00187M — $11.85