Teaching students about Carnauba is a great way to introduce them to the fascinating world of plants and the uses of natural resources. Carnauba is a wax that is derived from the leaves of the Brazil waxy tree, and it has been used for various purposes throughout history. It is also an important raw material for industries such as cosmetics and automotive.
To begin with, it is important to give students a brief history of Carnauba and how it is obtained. The wax is harvested by farmers in Brazil who climb the waxy trees and cut off the leaves. These leaves are then dried in the sun and threshed to remove the wax. The farmers then sell the wax to exporters who process it and sell it to various industries.
Next, the teacher can discuss the properties of Carnauba and its various uses. Carnauba wax is known for its high melting point, which makes it perfect for use in car waxes and polishes. It is also used in cosmetics, such as lipsticks and mascara, due to its smooth texture and water-resistant properties. Additionally, it can be used in food products such as chewing gum, where it acts as a hardening and glazing agent.
The teacher can also discuss the environmental benefits of using Carnauba wax. Unlike synthetic waxes, Carnauba is entirely natural and biodegradable. It also comes from a renewable resource, which makes it a great alternative to petroleum-based waxes. Additionally, its production provides livelihoods for many people in Brazil and promotes sustainable farming practices.
To make the lesson more interactive, the teacher can have students perform an experiment to show the water-resistant properties of Carnauba wax. Students can apply a layer of Carnauba wax to a surface and then pour water over it to see how the wax repels the water. The experiment can be expanded by comparing the water resistance of Carnauba wax with other waxes or materials.
