2. Flinker Lab
What’s a “flinker”? It’s simple when you think about it: It’s an object that neither floats on the water’s surface nor sinks to the bottom…it flinks in the middle!
Students will be asked to test items to see if they float or sink in a basin of water. They’ll then be asked to create a flinker out of provided supplies like Styrofoam peanuts or corks, aluminum foil, paper clips, and tacks or push pins. Students will have to record what materials they used to create their object and how long it was able to flink in the middle of the water basin.
After the experiment, discuss what properties make an object more likely to float or sink, and how students were able to achieve the state of being in between the two.