I don't usually take class time to give a pre-test but since we are wrapping up the year and my students are a little crazy I think a pre-test may help to focus them, not to mention the information I would gain about what they already know.
The start up is "Name at least 5 different types of elements from the periodic table. Can you tell me how many protons the atoms have?"
We are not crazy. Happy Earth Day
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