Hi!!!! It's me again. So yeah we just finished the changes in matter stuff.  So learned all about exothermic and endothermic (I know big words confusing right.)Endothermic is when less is given out , and exothermic is when more is given out. I also learned not all acids will melt stuff. I know Hollywood needs to get there facts straight. I really liked doing the chemistry in a bag stuff. I didn't like the test. But, really i don't like any type of tests. I'm still a bit iffy on how condensation works. Anyone think they can help me out?