To scour is to clean something very carefully. You might scour a pot or a sink with soap to get rid of all the dirt and debris.
Curving is a type of motion that is usually used to describe the paths that objects take when they are moving. When you say that something is curving, you are saying that the object is moving in a way that is not straight.
To democratize something is to make it available to everyone who wants to use it. When the internet was first made available to the general public, it was called democratizing the internet.
Nanomaterials are materials that are very small. They are usually less than 100 nanometers wide.
To scour is to clean something very carefully. You might scour a dish by washing it in many different directions.
Silicates are a type of rock that contains silicon and other elements. They are often found in the Earth's crust.
A latrine is a place where people go to use the toilet. It can be a building, a ditch, or even a hole in the ground.
A philanthropist is a person who gives money or resources to charity. They usually do this out of the kindness of their heart, rather than for any other reason.