Here are the critical terms for U1EA2
hypothesis - noun - an educated guess
hypothesize - verb - to make an educated guess
synthesis - noun - a new idea, a combination of many ideas brought *together*
synthesize - verb - to make a new idea by combining many ideas, bringing them *together
defend - see the term box on p. 83
challenge - see the term box on p. 83
qualify - see the term box on p. 83