## A1 Basic Materials and Measurement

All good things must start somewhere. In this section you will find introductions to common units and dimensions, introducing space, time, and mass.

• #### A1-01 MASSES - KILOGRAM AND POUND

Compare the weights of one kilogram (SI unit of mass) to one pound (English system unit of force) Read More
• #### A1-02: MASSES - CHROME PLATED

Show a collection of calibrated masses Read More
• #### A1-03: DENSITY - VARIOUS BRICKS

Demonstrate the concept of density Read More
• #### A1-11 LENGTHS - METER AND YARD

Compare the length of one meter (SI unit) to that of one yard (English unit) Read More
• #### A1-12: METRIC TAPE

Make measurements in the metric system Read More
• #### A1-21: METRONOME

Means to show different intervals of time Read More
• #### A1-22: HOURGLASS

Means to show different intervals of time Read More
• #### A1-31: VOLUME MEASURE DEMONSTRATION

Illustrate metric volume units Read More
• #### A1-32: VOLUMES - SPHERICAL VS CYLINDRICAL

Illustrate a volume perception paradox Read More
• #### A1-41: DRAWING PUZZLE - INTERSECTING RODS

Visualize three-dimensional figures Read More
• #### A1-42: DRAWING PUZZLE - HALF CUBE

Visualize three-dimensional figures Read More
• #### A1-43: CROSSING RODS

Visualize three-dimensional figures Read More
• #### A1-51: SKATEBOARD

Show things with a skateboard Read More
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