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Density


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Buffers

Resisting pH changes, buffers protect samples when acids or alkali is added. Powder and liquid forms efficiently track proteins during electrophoresis isolation and separation. The salty buffers can also be used to calibrate and standardize pH meters for accurate readings. Blocking substances stop antibody attachment to membrane free sites that would produce an interfering background. In various concentrations to fit any need, the buffers may come in liquids or dehydrated formats.


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Catalog Number: (470152-828)

Description:   Teacher Developed!
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Catalog Number: (470007-252)

Description:   This set of blocks, developed by Jodye Selco, is an excellent complementary set to Density Blocks I.
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Catalog Number: (470190-698)

Description:   Engage Students in a Hands-On Density Activity
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Catalog Number: (470039-724)

Description:   Comprehensive Classroom Activities and Lessons All In One Convenient Package
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Catalog Number: (470101-810)

Description:   What happens when you place a separator sheet between a column of red-colored warm water on top of blue-colroed warm water and slowly slide the separa...
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Limited time offers
Description:   Teach your students properties of materials!
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Catalog Number: (470077-868)

Description:   Wood, Board, Pine
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Catalog Number: (470148-956)

Description:   The Collision in Two Dimensions apparatus is a rich source of data for studying conservation of momentum and conservation of kinetic energy in collisi...
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Catalog Number: (470106-388)

Description:   Simple supplies communicate complex concepts in this fun, creative learning kit.
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Catalog Number: (470015-782)

Description:   Demonstrate the Process of Learning
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Description:   Isaac Newton could never have imagined that upper elementary and middle school students could explore his mathematically derived laws of motion using ...
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Catalog Number: (470101-694)

Description:   Bloops are strange but cute little creatures that, as teacher developer Anthony Garofalo has discovered, are perfect for helping students make sense o...
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Catalog Number: (470008-024)

Description:   Simultaneous Teacher Demonstration and Student Workstations
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Catalog Number: (470012-640)

Description:   Use multiple forms of evidence analysis.
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Catalog Number: (470106-076)

Description:   Students build their own working hydraulic robot.
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Catalog Number: (470005-502)

Description:   Perfect for Demonstrating Electrostatics
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