Walk as fast as you can in a circle around a section of the pool that's about 3 feet deep (the more people, the better the effect). Do about 20 laps, then change direction for 10 laps. The resulting rush of water against your body will feel much like the jets in a whirlpool.
These particles do not vary in quality from one element to another; rather, what gives an element its distinctive identification is the quantity of its protons, called its atomic number. Protons and neutrons contribute nearly all of an atomâs mass; the number of protons and neutrons is an elementâs mass number.
We call the elements essential in that the world must be looked at in this way; we use the term elements to show that these are building blocks. In the sections that follow (accessible through the menu at left), each of the 18 Geographic Standards is explored more thoroughly in the context of East Asia's geography.