Sink or Float?

Today, we're asking you to figure out what makes an object sink or float.  Watch the first 4 minutes of Marla's video below, where she shows some different object sinking or floating.  You may be surprised!!!

Then grab your own pot of water, and see if you can figure out what it is that makes an object sink or float.  Do some research. Experiment!  Snap a photo or take a video of yourself answering the question.  THEN come back, see what Marla has to say.  Were you right???

Be sure to share your findings with us on the Alaska 4-H facebook page!!!