Can you make an object that when placed in water will sink, stay down for exactly one minute, then float? And do this without directly or indirectly touching the object once its in the water?

Well that’s the challenge.

Over the next few days we’ll be making observations from a number of density demonstrations and doing background research in your quest to meet the challenge. Each night you’ll write a reflection on the day’s activities and how they might help you succeed.

Don’t jump to solutions just yet. First observe, think, ask questions and do research. Once you have enough scientific information then begin to brainstorm ideas on how to create your object.