| A | B |
| pure science | a science depending on deduction |
| applied science | using knowledge to make things better |
| biology | science of life or living matter |
| botany | science of plants pure science |
| zoology | science of biology dealing with animals |
| agriculture | production of crops, livestock, poultry applied science |
| animal science | science of animals |
| agronomy | science of soil management and crop production applied science |
| horticulture | science of art and cultivating such plants |
| forestry | science of planting and taking care of trees and forests for lumber and paper |
| physics | science of matter, energy, motion, and force |
| engineering | art or science of making practical application |
| hydroponics | cultivation of plants by placing the roots in liquid nutrient solutions |
| aquaculture | cultivation of aquatic animals and plants |