To float or Not to float? Or sink less than 3 seconds

If an irregular object floats on water, we can immediately conclude that it is less dense than the water. Yesterday we had a lab where we must make an irregular object sink as slow as possible. It was a hard thing to do for we have to go through a calculation that most or some of us were having trouble with. Thank goodness our irregular object was sinking for 1.2 seconds. .2 longer than I predicted. I was amazed to what I have seen. Tomorrow we will have a Written Test. REMEMBER TO BRING YOUR JOURNAL TOMORROW. She will collect our journal and hand it out during or after class.