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.

Articles
Image	Title
	A1-01 MASSES - KILOGRAM AND POUND Compare the weights of one kilogram (SI unit of mass) to one pound (English system unit of force)
	A1-02: MASSES - CHROME PLATED Show a collection of calibrated masses
	A1-03: DENSITY - VARIOUS BRICKS Demonstrate the concept of density
	A1-11 LENGTHS - METER AND YARD Compare the length of one meter (SI unit) to that of one yard (English unit)
	A1-12: METRIC TAPE Make measurements in the metric system
	A1-21: METRONOME Means to show different intervals of time
	A1-22: HOURGLASS Show an hourglass
	A1-31: VOLUME MEASURE DEMONSTRATION Illustrate metric volume units
	A1-32: VOLUMES - SPHERICAL VS CYLINDRICAL Illustrate a volume perception paradox
	A1-41: DRAWING PUZZLE - INTERSECTING RODS Visualize three-dimensional figures
	A1-42: DRAWING PUZZLE - HALF CUBE Visualize three-dimensional figures
	A1-43: CROSSING RODS Visualize three-dimensional figures
	A1-51: SKATEBOARD Show things with a skateboard