Unit 2: Lesson 1 Vocabulary - Why Do We Yawn?

yawn

(verb) to take a deep breath with your mouth wide open

quickly

(adverb) fast

contagious

(adjective) able to be passed easily from one person to another.

bored

(adjective) not interested

might

(modal verb) maybe is; 50/50 chance

however

(conjunction) but

excited

(adjective) very happy or enthusiastic

race

(noun) a competition to see who/which one is faster

alert

(adjective) watchful; wide awake

deeply

(adverb) completely, strongly

stretch

(verb) to make longer

muscles

(plural noun) body tissues that stretch and contract for movement

Why Do We

...

Yawn?

...