Begin by filling up a water bottle. Once filled poke small holes with a thumbtack near the bottom. What happens when the lid is unscrewed? What happens when the lid is screwed on tightly? Why the difference?
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SmartyPants Science
Welcome to the SmartyPants Science Channel where kids explore science concepts in fun, inquiry-based ways. This channel is run by Lynette Dickerson, a veteran teacher from South Carolina, and her son, Harper.