Particle ( page 264 ).
Questions.
1. What is a particle? 2. What does atom etymologically signify? What is its meaning in present scientific use? 3. What is a molecule, and of what is it regarded as composed? 4. What is an element in chemistry?
Examples.
Lucretius held that the universe originated from a fortuitous concourse of ——s.
But thou shalt flourish in immortal youth,
Unhurt amidst the war of ——s,
The wreck of matter and the crush of worlds.
Many aquatic animals, whose food consists of small —— diffused through the water, have an apparatus for creating currents so as to bring such —— within their reach.