In this unit in science, we learned about changes in matter. My favorite thing we did in this chapter was the one science lab we did where we mixed CaCl2 with NaCHO3 and cabbage juice, and put it in the bag, and it started to turn purple and almost blew up! I really didn't dislike anything in this unit. Three thing we learned about in this unit was about solutions, elements, and about compounds. What was your favorite thing?