Paper - thin, flat material used for writing on, Inventor - someone who designs and makes new things, Scientist - someone who studies science or works in science, Gunpowder - an explosive mixture of substances, Silk - soft type of cloth, Packaging - the materials in which objects are wrapped before being sold, Papyrus - a tall plant like a grass that grows in or near water, Printing - writing or images on paper or other material with a machine, Bark - the hard outer covering of a tree, Discover - to find information, a place, or an object, Invention - the process of creating something that has never been made before, Ammunition - objects that can be shot from a weapon, such as bullets or bombs,

Inventions

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