Matching Pairs Vocabulary Practice Online version Second misterm portfolio activities by Diana Ivette Tapia Fernández 1 2 n. natural substances used to manufacture products 3 n. a building used to store products before they are 4 quality control 5 manage (verb) 6 assembly line 7 8 factory 9 v. to check that products, especially new ones, work properly 10 Chemicals v. to plan and develop new things, e.g. new products fertilizers, plastics, paints test warehouse raw materials n. a system to ensure that the standard of a product is always good n. an efficient sequence of workers and machines n. a building where things are made with machines n. the use of machines with little or no human control