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Journal Article

Rock Finding

Everybody Needs a Rock by Byrd Baylor (1974) is an inspiring book in which the author invites readers to go “rock finding” by laying out ten rules for finding a “perfect” rock. In this way, the book encourages children to look closely, using ...

Journal Article

Ask the Experts—December 2006

The Experts address the following question in this month’s column: "Since helium is an inert gas that drifts to space, where do we get the helium that we use here on Earth for balloons and other applications?"...

Journal Article

Conceptualizing Nanoscale

One strategy for enhancing students’ understanding of nanoscale is to shift students’ existing understandings of relative scale by helping them conceptually transport their strongest scale benchmark—themselves—into the nanoscale world. This a...