Rubber Stopper Assortment Pack 2 lb, #00 to #8

Large specimen of limestone (6-9") with small fossils inside.

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These #10 rubber stoppers are 42-50 mm diameter with one 5 mm diameter hole.

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This set of six cork borers allows you to make uniform holes in rubber stoppers and corks to meet a variety of laboratory needs.

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These #00 rubber stoppers are 10-15 mm diameter.

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The text/lab book for Apologia's Exploring Creation with Chemistry.

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Explore the building blocks of the universe with this Happy Atoms Introductory Set! Use this 3D molecular modeling set to construct 508 molecules & discover a revolutionary approach to chemistry.

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Don't want to purchase a ring stand and thermometer clamp? Check out this pack of 5 beaker thermometer clips to assist in your scientific experiments.

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Build a functional mega hydraulic arm in less than 30 minutes. This mega hydraulic arm uses eight syringes and four pieces of rubber tubing to maneuver the claw and arm using some of the same principles that drive real-world machines.

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Learn about earth and space this school year as your student studies natural resources, solar energy changes, and more. This bundle includes detailed teacher guides, full-color student workbooks, and experiment supplies.

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Uncover the impact of infrastructure. Build and model watersheds to measure runoff differences and investigate human influence on natural systems with 6 learning experiences in this high school Earth Science kit.

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