Question: Why do some objects or substances sink or float?, How many total M&M's are in the bag?, Which bubblegum brand makes the biggest bubble?, Which one sinks: a plastic marble or a glass marble?, Which brand of dish soap is the cheapest?, Hypothesis: If I take my vitamins every day, then I will not feel tired., If I brush my teeth every day, then I will not develop cavities., If you refrigerate apples, they will last longer before going bad., If I increase the mass of a marble, then it will travel faster across the table., If I increase the amount of dish soap in a bubble solution, then the bubbles will be larger in diameter.,

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