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Praxair Scientists Demonstrate How Matter Changes Form

Praxair scientists pour liquid nitrogen As part of Smallwood’s commitment to expanding learning outside the classroom, Praxair Inc. representatives were invited to visit our second-grade classes. Praxair is a world leader in the manufacturing and distribution of industrial gases and a strong member of the Buffalo community with their offices located in Tonawanda, NY.


Two Praxair representatives walked the children through learning about changes in matter and explained how the gases around us can change from solids to liquids to gases. There were also real-life demonstrations to make these concepts more concrete for the children. The sessions ended with a special treat of making the children ice cream made from liquid nitrogen. Learning, treats, and fun for all!

Student helps with experiment