What is Matter? - anything that takes up space and has mass. Can you give some examples?
What is an element? - pure substance that can not be broken down into other substances by chemical means.
What are the most important ones in living systems? C, H, N, O Why are these the most important? What molecules are they involved in?
Describe what an atom is and what it contains - smallest part of an element. Can you draw a picture of an atom and label the parts we discussed?
What about bonds? - Process of transferring electrons creates attraction which holds the atoms together.
Covalent vs. Hydrogen vs. Ionic bonds?
what is a molecule? - 2 or more atoms held together by covalent bonds.
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