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Catalog Number: (470020-134)
Supplier: Science First
Description: Unique Manipulative For Visualizing How Bullets Are Traced to a Particular Firearm


Catalog Number: (470006-464)
Supplier: Science First
Description: The Precision Photoelectric Effect uses three color filters to calculate Planck's Constant.


Catalog Number: (470007-358)
Supplier: Science First
Description: This translucent model provides a detailed, three-dimensional view of cell.


Catalog Number: (470021-244)
Supplier: Science First
Description: Thsese tubes meets GLOBE requirements.


Catalog Number: (470151-916)
Supplier: Science First
Description: Ptolemaic Planetary System Model.


Catalog Number: (470105-714)
Supplier: Science First
Description: Acetate Strips


Catalog Number: (470004-984)
Supplier: Science First
Description: The Sunspotter Keplerian Telescope lets users safely view the light of the sun.


Catalog Number: (470089-564)
Supplier: Science First
Description: Be Prepared For Your Electrochemistry Experiments


Supplier: Science First
Description: This generator can perform all electrostatic experiments on a spectacular scale.

Catalog Number: (470002-686)
Supplier: Science First
Description: Remarkable View Of An Autotrophic Protist


Catalog Number: (470004-404)
Supplier: Science First
Description: Economical Example of Earth’s Rotation and Seasons


Catalog Number: (470024-092)
Supplier: Science First
Description: Illustrate the Relationship Between Karyotyping and Genetic Diseases


Supplier: Science First
Description: Introductory Planetarium is a simple model for hands-on demonstrations.

Catalog Number: (470308-880)
Supplier: Science First
Description: Water sampler for samples of lake, river, or stream water.


Supplier: Science First
Description: Convienent Classroom Farming.

Supplier: Science First
Description: Estimate stream quality as it relates to solids in the water.<BR><BR>This Turbidity Tube is made from 1-<sup>3</sup>/<sub>4</sub>" (4.4 cm) clear polycarbonate tubing and is marked with easy to read black numbers on a white tape; tape is marked in centimeters. A drain tube with a crimp are supplied so the sample can be drained off until the Secchi pattern on the bottom just appears. The height of the water column is then recorded. Overall length of the tube is 24" (61 cm).<BR><BR>The optional Transparency Tube (item #67311-46) allow you to measure turbidity in streams where a secchi disk can't be used--simply fill the tube with water and look down. Each clear polycarbonate tube features a centimeter scale on one side and a secchi disk design, 2" (4.5 cm) in diameter, on the bottom. The secchi design is screwed to a rubber stopper that removes for cleaning. Drain the tube with the drain hose and attached finger crimp. Ideal for the GLOBE program!

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above. If you need further assistance, please call VWR Customer Service at 1-800-932-5000.
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