Battery, AAA, alkaline, 4 pack

This 1000ml PYREX narrow mouth Erlenmeyer flask with a heavy duty rim is made from low expansion, Type 1, Class A borosilicate glass that can be heated directly in an open flame.

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An All-In-One STEM Kit That Helps Children To Explore, Learn, and Grow! This rock and mineral collecting activity kit is a great tool for continuing your child's education in a multi-disciplinary way!

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You won't be repulsed by this active exploration of the forces within and among molecules that determine structure and chemical behavior. This kit also includes a Deluxe Molecular Model Set, perfect to optimize learning!

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Learn about Fizz, Foam, and Fire! Perform several chemical reactions to identify evidence for chemical change, use clues to describe reactants and products, and determine whether reactions are endothermic or exothermic.

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Connect this solar cell with the attached wires for experimenting with alternative energy. Approximate size is 1.9 cm x 3 cm.

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Learning about energy sources and how to "think green" is a snap! Kids will enjoy the challenge of using the award-winning Snap Circuits® components in this alternative energy kit to build over 125 hands-on projects.

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Find surprising answers to various physics questions with this Complete Introduction to Physics (Grades 6-8)! Why settle for reading about Newton’s laws of motion when you can test them in real life?

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For clamping rubber and plastic tubing to stop the flow of liquid.

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This larger and heavier ring support stand features a cast iron base with black chemical resistant finish.

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This is the replacement bulb for the top illuminator on the National Optical stereo microscopes, models 411 and 410.

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