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In this activity, learners explore how spring scales work and how they are used for non-exact weight measurement.

In this activity, learners build large-scale structures and cantilevers in a series of "building out" challenges with garden poles and tape.

In this activity, learners investigate how inkjet printers produce tiny, precise drops of ink.

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

In this activity, learners are challenged to calculate their own weight on various planets using a scale and calculator. Older learners may be challenged to do so without using calculators.

In this activity, learners explore how wind energy can be generated on both a large and small scale.