Interdependence. Interdependence is a key idea in science. As students learn about science, they begin to understand that the earth is not a group of discrete parts but a continuous environment existing over time as well as place.
In order to remove the caffeine from coffee beans, the beans are washed in a solvent (a liquid capable of dissolving substances), transferring the caffeine from bean to liquid in a process known as extraction. To extract caffeine from whole coffee beans, the following solvents can be used:
How does coffee become decaffeinated? There are a few different ways of removing caffeine, but often a solvent will be used to extract caffeine from the coffee bean while leaving all the other chemicals in tact. Tâ¦his is then repeated several times to extract even more caffeine.