| Windmill
Demonstrator |
S$156 |
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This wind power
generator can be used to demonstrate the generation of electricitiy by a
wind-powered turbine. Wind produced by the hand-cranked fan subsequently
turns a second fan connected to a generator. When the fan rotates, it
produces electricity and lights up a small bulb, and a connected voltmeter
indicates the amount of current being produced. Instructions included.
Unit measures 30 x 22 x 19cm |
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| Solar
Demonstrator |
S$120 |
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Use this kit to
demonstrate the effect of solar power and its ability to be converted to
mechanical energy, light energy, battery power and current. Includes
mounted solar cell (3-1/2" x 3-1/2") with terminals, a motor, an
LED, as well as a mounted battery and ammeter on an 8" x 4-3/4"
base. Battery and ammeter each have their own terminals. |
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| Energy
Conversion Kit |
S$188 |
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This kit
includes various devices for generating and using electrical energy,
letting you demonstrate the conversion of energy between different forms.
Includes four devices for generating electricity: hand generator
(mechanical motion), batteries (chemical energy), a solar cell (light),
and windmill (wind), and three devices for using electrical energy: LED
(generating light), motor (generating motion), and buzzer (generating
sound). A set of cables connect devices to each other in appropriate
combinations. Includes manual. |
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| Harbottle |
S$78 |
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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. |
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| Levitating
Vortex Magnet |
S$48 |
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Demonstrate magnetic
levitation and frictional force with this attractive two-tone spinning
vortex. One twist of the wrist and the axle rotates for more than 10
minutes. The black and white sections, coupled with extremely low friction
flotation, allow rotation speed to be measured with a stroboscope.
Includes instructions. |
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| Double
Cone Ramp |
S$45 |
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An inexpensive and
effective version of this classic paradox apparatus. Because of the angle
of the cone, its center of mass is lower at the top of the ramps than at
the bottom so, counter-intuitively, it will roll up the ramp instead of
down when released. The ramp measures 45cm L x 4cm H and has a 2.5°
incline. The double cone measures 16.5cm W x 8cm diameter. |
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| Eternity
Emergency Flashlights |
S$58 |
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Promote Faraday’s Law of
Induction with a flashlight that never needs batteries! English physicist
Michael Faraday discovered that any change in the magnetic environment of
a coil will induce voltage in that coil. 15-30 seconds of shaking offers
up to of five minutes of continuous bright light. Single LED light is
visible for up to 1 mile. Includes a waterproof case that floats.
Measures: 1-1/2" W x 6-3/4" H. |
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| DC
Generator |
S$46 |
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This generator can be utilized with almost any
experiment requiring up to 12V DC current. Housed in tough clear plastic,
this unit is not only functional, but costs about half that of similar
models. Can also be used as a hand-generated flashlight due to the mounted
lamp on the end or use the binding post to connect an outside electrical
circuit. Pistol-grip handle.
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| Light
Crystal Prism 2.5" |
S$20 |
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Learn how to split a beam of
light into a multicolored rainbow or look through the top beveled edge to
reflect images into wonderful patterns like a kaleidoscope.
A quality
acrylic prism.
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| Newton's
Cradle |
S$78 |
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Demonstrates Newton’s Third Law of Motion and the
principles of conservation of momentum. This law states that action and
reaction are equal and opposite. The unit consists of a walnut support
with five nickel-plated steel balls. Dimensions are 9" x 7" x
8" H overall. |
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| Drinking
Bird |
S$32 |
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Almost everyone
remembers this hard-to-find toy with at least a twinge of nostalgia - now
he's back, disguised as a great physics demonstration of heat and
thermodynamics. This lugubrious little lorikeet dips his beak into a glass
of water as evaporative cooling induces the rise of a volatile liquid from
his tail toward his head. As he dunks, the liquid returns to his tail, the
bird rises, and the process begins again. |
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Hand Boiler |
S$24 |
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This energy
transformation is sure to capture your students' attention! Hold the glass
vessel in your hand, and your body heat causes the liquid inside to appear
to boil and shoot into the top bulb. Challenge your students to explain
the rapid change. Assorted colors and styles. Hand Boiler is 7 inches
tall. |
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Hot-Air Balloon |
S$68 |
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Impressively big – but not too
big to use indoors. Our reusable hot air balloon is made of a heavy duty
plastic. Fill with hot air from an ordinary hair dryer. Simply suspend
weights to determine the buoyant force! Fully inflated, 8’ tall and
6’wide. |
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Balancing Bird |
S$18 |
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Kids are always amazed
when they see this bird balance on anything - a finger, even a nose! But
it doesn't defy gravity - it takes advantage of it. Thanks to two
well-placed weights at the end of its wings, its center of mass is located
below the tip of its beak, creating a stable equilibrium.
Show students how
deceiving an object's center of mass can be, spin it on the end of your
finger to demonstrate rotational motion, or discuss movement in two
systems by moving your hand through the air to add translational motion.
Size 6" wingspan.
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Magnetic Seal with Ball |
S$40 |
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Inquiry
Activities for Magnetism
The ball spins for
Robby the Seal, thanks to the strategically placed magnets in this toy.
The magnets are oriented to produce both a torque and a repulsive force.
Challenge your students to describe the arrangement of the magnets and the
resulting forces that produce the motion. Robby also balances the ball on
his nose.
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IR Controlled UFO Flyer |
S$98 |
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Take
Off and Explore Vertical Forces!
This cool little UFO
is the easiest-to-fly R/C flyer we’ve ever seen! It only goes up and
down, so there’s no tricky coordination required. Its compact size –
just 5” high – makes it perfect for classroom demos. Incorporate it
into your lessons, or let your students independently discover the
numerous principles involved in the technology.
Explorations:
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Newton’s Third
Law: The rotors push air downward, and the air exerts an upward force
on the rotors.
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Rotational Motion:
Counter-rotation of parts shows conservation of angular momentum and
provides vertical stability.
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Light and Waves:
Infrared controller communicates commands. See the IR signals with a
digital camera!
To operate, plug the
flyer into the charging base. (8 AA batteries not included. We recommend
using rechargeable batteries.) A 20-30 minute charge lets you fly for
about 8 minutes. Maximum height of over 20 feet. |
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| Flying
Pig |
S$42 |
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When
pigs fly! A fun lab on centripetal force.
Add some excitement to your lessons on circular motion with the Flying
Pig. Suspended from the ceiling, his wings flap and carry him in a regular
circle. With the string, this motion gives students a conical pendulum and
a perfect opportunity for quantitative measurements of circular motion.
Lab instructions included.
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| Balancing
Man - Circus Sam |
S$52 |
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Meet CIRCUS SAM, the Balancing
Man! Unlike other balancing toys, SAM's arms, legs, and balancing pole all
move, allowing him to balance in all sorts of gravity-defying positions.
He can balance on his nose, toes, and head, or if you prefer, he can lean
way out instead. Once he is in position, give him a little turn and he
will bob up and down as he goes round and round. A detailed instruction
booklet is included.
What's included?
Kit includes Circus Sam, platform, pole, base and
instructional booklet.
What does it teach?
Great for teaching balance, force and motion. |
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| Balancing
Soda Bottle Kit |
S$80 |
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It's the balancing bottle trick
using a 2-liter soda bottle. The hole in the acrylic board is just large
enough to fit the neck of a 2-liter soda bottle. Slip the bottle through
the hole and try your hand at balancing the bottle on the bottom edge of
the board. It looks and feels impossible until you finally let go! The
bottle appears to defy gravity as it balances in a most precarious
position. Don't let the sounds of "ooohs & ahhhs" drown out
your lesson on the center of gravity.
What's included?
The kit comes complete with a precision cut balancing
board, an empty 2-liter soda bottle, a science display box and an activity
guide with great extension ideas.
How does it work?
It's truly a lesson in the center of gravity. When the
center of gravity of the entire set-up is directly above the base of the
board, the “system” (the board and soda bottle) will balance itself.
When the center of gravity is not directly above the foot of the base, the
system is unstable and falls over.
What does it teach?
It's easy to experiment with the center of gravity using a
2-liter bottle filled with water. The center of gravity can be changed by
adding or removing the liquid in the bottle. When the right amount of
water is in the bottle and distributed properly, you get a perfect balance
of the board and bottle. |
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| Solar
Radiometer |
S$36 |
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A radiometer is a large glass
bulb or sphere with a mast running up the middle. Four diamond-shaped
"sails" balance near the top. As the sunlight hits these flags,
they begin to turn. In bright sunlight, they really spin fast! It's an
amazing experiment in solar science and the nature of light!
How does it work?
The glass bulb of the radiometer is sealed so that a tiny
bit of air is trapped inside. This partial vacuum allows the flags to turn
freely, without too much drag. Notice that the flags have one shiny side,
and one black side. When the light hits the flags, it is reflected off the
shiny sides, but absorbed by the black sides, which raises their
temperature. When the black sides of flags heat up, the air near them also
heats and the excited air molecules exert a tiny bit of pressure on the
flags from one side. This small difference in pressure is enough to make
the sails spin!
What does it teach?
Discover the relationship behind light, heat and air
pressure. Learn about the particle nature of light. When the photons
strike the surface of the radiometer, they transfer their energy in the
form of heat, and the sails spin. |
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| Magic
Mirror |
S$99 |
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This deceptively simple device
creates three-dimensional real images of remarkable optical resolution and
startling clarity. Precision-mirrored coating faithfully reflect
untouchable objects of your choice to an amazed class. It's ideal for a
wide range of experiments illustrating the difference between reality and
sensory perception. Comes with a confidential owner's manual that reveals
the secrets of the illusion and details of the unusual effect. Dimensions:
9" x 7" x 9" |
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| Gyro
Ring |
S$52 |
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Guaranteed to keep your students enthralled for hours! With a quick
thrust of your hand, the five colored discs spin like tops, displaying the
gyroscopic effect. When you turn the ring, the precession, or wobbling, of
the spinning discs creates a contact point where friction transfers energy
directly to the discs, keeping them spinning indefinitely! The faster you
turn the ring, the faster the discs spin. (11" diameter)
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| World's
Simplest Motor |
S$22 |
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Wrap the wire around a D-cell battery, scrape
the ends and the coil is ready to go in one of the world's easiest motors
to build. The principles of magnetism can be demonstrated as the coil
becomes energized in each rotation and pushes against a mounted ceramic
magnet with enough energy to keep it spinning. Additional experiments are
suggested for hours of fun and learning.
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| Tornado
Tube |
S$8 |
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Discover the potential energy (mass) in water as it is
converted to kinetic energy when it descends, pulled by gravity, through
an opening.
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| Fountain
Connection |
S$18 |
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Hero of Alexandra (62 A.D.) designed a water
fountain that used compressed air to lift water to a point higher than its
origin. The result was a fountain that seemed to defy both logic and the
laws of nature.
A closer study of this fountain will reveal the principles
of operation.
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| Squidy
(Cartesian Diver) |
S$16 |
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Squeeze the plastic
soda bottle and watch the squid-like creature sink and swim. The
illustrated instructions show how to construct the diver and explains the
scientific principle behind its action.
SQUIDY is a captivating science
experiment that is great for children and teachers.
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| Super-Absorbent
Crystals |
S$40
( (4 packs of colored crystals) |
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These
incredible pebble size crystals mysteriously turn into pieces of gel-like
material when you add water. In fact, the crystals can absorb 150-300
times their weight in water and they are reusable! Best of all, the
instructions are packed with some ingenious science activities that make
great teaching demonstrations or science projects for students. Guaranteed
hands-on science fun!
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| Static
Tube |
S$12 |
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Discover
the wonders of static electricity as you cause the static spheres to dance
inside the tube. Uncover the hidden static charges everywhere!
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| UV
Beads |
S$28 |
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Explore the Science of Ultraviolet Energy. Beads
change color in sunlight and change back to white indoors. About 200 beads per packet.
Make an UV Bread bracelet! |
