Weathermen need to study meteorology to predict the weather.
The CSI investigator was examining microscopic particles of DNA.
Physicists were examining atom particles under a powerful microscope.
There will be a 70 percent chance of precipitation tomorrow, so get your umbrella
ready.
The HAZMAT team was sent to seal off the radiation contamination at the nuclear
power plant.
a. a minute or tiny portion or fragment of something
b. the smallest portion of an element
c. the scientific study of the weather and the atmosphere
d. rain, snow, or hail formed by condensation in clouds
e. when something becomes polluted or infected