This is a great review game to play with your students! "I have, who has" is a wonderful interactive game to get your students thinking! I use this game as a review with my students. All I do is print out the cards (I use colored paper to separate the units) and I laminate them so I can use them from year to year! Vocabulary words that are covered: homeostasis, autotroph, heterotroph, development, reproduction, nucleus, mitochondria, cell wall, cell membrane, nuclear membrane, ribosomes, golgi bodies, lysosomes, endoplasmic reticulum, chloroplasts and cytoplasm!