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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 investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

In this activity, learners play a card game that explores different size scales--macro, micro and nano.

In this quick activity about size and scale (on page 2 of the PDF under What's Nano?

If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it!

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 will build thier own balance scale. Learners will explore weight and comparison through this activity.

This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.

In this activity, learners build a 1:140 "scale model" of NASA's X-33 Reusable Launch Vehicle (RLV) Technology Demonstrator, and investigate how the model dimensions compare to the real vehicle.

In this activity, learners build scaled-down structures and cantilevers in a series of "building out" challenges with bamboo skewers and tape.

In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.

In this game, learners explore the different sizes of things in the world. In this Twister-like game, learners must place a hand or foot on a circle of the right scale - macro, micro, or nano.

In this activity, learners make or use pre-made clay beams to scale and proportion. Specifically, they discover that when you scale up proportionally (i.e.

In this activity on page 15 of the PDF, discover how materials and physical forces behave differently at the nanoscale.

This lesson focuses on how to measure at the nanoscale and provides learners with an understanding how small a nanometer really is.

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

Visitors prepare six solutions combining vinegar and ammonia that range incrementally from acid (all vinegar) to base (all ammonia).

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

This is an activity (located on page 4 of the PDF under What's Nano? Activity) about size and scale.

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