Balloon Racer
...three plastic cars with turning wheels and balloon "engines". Great for teaching concepts from the properties of air to jet propulsion. Random colors. set of 3, only $1.25
10%
off
class sets
of 20
or more!
ANY
ITEM!
Box o' Bones
...16-piece kit assembles to create an amazingly instructive, glow-in-the-dark skeletal system. only $4.95
Diffraction Glasses
...split white light into its spectrum through laser-etched lenses. Used in combination with a large prism, children will never forget what they see for themselves. set of 3 pairs, $1.50

Drinking Bird
...here's the classic "toy" which is a perfect, fun (memorable) way to relate the concepts of heat/volume/ pressure relationship, center of gravity, capillary action, evaporation and human perspiration. only $4.95
10%
off
class sets
of 20
or more!
ANY
ITEM!
Fortune Fish
...includes a full class set of 25. For teaching polymers, absorption and expansion. Reusable.
set of 25, only $1.95
"Golden-Red" Paper
...turns red in the presence of a base, such as ammonia or baking soda, turns back to gold in the presence of an acid, such as vinegar. Includes reproducible acid/base testing form. 8.5" x 11", 100 sheets, only $4.95, full ream (500 sheets), only $18.95.

Gravity Bird
...demonstrates center of gravity by seemingly defying its laws. Trick is that most of the weight is in the wing tips. Random designs. only $1.50
10%
off
class sets
of 20
or more!
ANY
ITEM!
Growing Dinos
...includes 10 tiny hydrophilic polymer dinos which, within a few days of soaking, can swell to as much as 800 times their size. Reusable. Random species and colors. set of 10, only $2
Hi-Bounce Balls
...two, large 38mm - 45mm (1.5 - 1.75 in.) in diameter. For use with Ball Wall and other motion and energy activities. Random colors and designs. set of 2, only $1.25

Liquid String
...85g can demonstates a polymer which changes from liquid to solid on contact with the air. Flammable. Ground shipping only. Random styles and colors. only $2
10%
off
class sets
of 20
or more!
ANY
ITEM!

MagnaWheels
...demonstates gravity, rotary motion and magnetism. only $1
Magnifying Lenses
...are the perfect starter tools for budding scientists to simply observe everything in their world. Existing supplies only. set of 25, only $1.25

Marbles

...sixteen standard size for use with Ball Wall or Racing Marble. set of 16, only $1.50

10%
off
class sets
of 20
or more!
ANY
ITEM!
Ping Pong Balls
...four standard size for use with Ball Wall or Magic Air Ball. set of 4, only $1.25
Pinwheel Spinners
...class set of 25 demonstrates to smaller children the substance and power of air. Random colors. Existing supplies only: LIMITED.
set of 25 only $1.50

Polarizing Filters
...two 43mm square filters to make the kaleidoscope. Rigid, set of 2 only $2.50
10%
off
class sets
of 20
or more!
ANY
ITEM!
Slide Flutes
...three, each 20cm long. Great for showing the relationship between length (from end of slide to end of mouthpiece) and the tone that's produced. Lesson can include mathematical graphing.
set of 3, only $1.50
Mini Spring
...only 28mm in diameter, allows each pair of children to demonstrate how sound waves travel. Durable metal. set of 2,only $1.50

Sound Tube
...demonstrates the physics of sound for the younger student.
Random colors. set of 2, only $1.50
10%
off
class sets
of 20
or more!
ANY
ITEM!
Spray Bottle
...250ml, for use with Rain Flowers and other activities.
Random colors. set of 2,only $1.50

Chenille Stems
...for Rain Flowers. Random colors. Set of 20 including free filters.
set of 20 only $1

Wall Balls
...are made of an exciting special polymer with a perfect balance between stickiness and mass so that they roll down the wall.
Random colors. only $1
10%
off
class sets
of 20
or more!
ANY
ITEM!

Whirlybird
...includes three propellers and spring action launcher for teaching air and flight. Random colors. only $1
Whistle Tube
...creates sound when whirled through the air. Random colors. only $1.50