Test Tube Rack, 40 Places, White PlasticThis economical, durable plastic test tube rack is stackable and can be completely autoclaved. It is also made to stay submerged and maintain stability in water. It is easy to assemble for use, and disassemble for storage. Perfect for all young scientists, as well as classroom and lab use. This test tube rack holds 24 test tubes, up to 25mm (. 984 inches) in diameter. Product Details: Material: Polypropylene Assembled Dimensions: 24. 6cm x 10. 4cm x

1 Water Meter

Based on the tradition Carol Aebersold began with her family in the 1970s

the musical genius embarks on a journey in which doubt

After reading this book

with more than eight years experience working on award-winning publications

Product Size: Ball is 8-1/2" diameter when inflated

As kids work through these activities

The molded feet on the bottom keep from harming furniture

James Mayhew's rich and detailed drawings add to the color and drama of these timeless tales

A great lesson in the science and art of mixing primary colors

Brown Thread

Made in America out of recycled material