bat – n. an animal that has wings and a furry body like a mouse

exploit – v. to get value or use from something; to use someone or something in a way that helps you unfairly

harness – v. to use something for a particular purpose

practice – v. to do something again and again in order to become better at it

recycled – n. something that has been used before

silk – n. a smooth, soft, and shiny cloth that is made from thread produced by silkworms

sustainable – adj. able to be used without being completely used up or destroyed

textiles – n. fabric; cloth