Three things I learned about in this unit were that one, exothermic means that more energy was leaving the chemical reaction than it was taking in.  I also learned that endothermic reaction means that more energy was being taken in that given off.  The last thing I learned was that a chemical reaction happens when a new substance is formed.  What I liked best in this unit was the chemistry in a bag lab.  What I liked least in this unit was the test.  Here is my question; What is it called when a gas turns into a liquid?

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Three things I learned in this unit are what the different ways heat can transfer from one particle to another.  The first way is radiation, it transfers heat by electromagnetic waves.  The second way is conduction, this is the transfer of heat with direct contact with two objects.  The last way is convection, this is the transfer of heat with the use of a liquid or gas.  What I liked best about this unit, was that almost everything we learned about we did some type of lab or experiment, where we got up and did fun stuff in groups.  I did not dislike anything we did this unit, i liked it all.  Can you tell me what a conductor is?