Sink or Float 2013
Fri, Aug 9, 2013
Materials: Coins, baggie, lid
Activity: Making Things Flink Activity: Add enough weights to an object to make it sink. Add a big enough balloon to an object to make it float. Boat Activity: Add coins or rocks to a plastic bag. Watch the bag sink. Add coins to a lid, then place it in a plastic bag. Watch the bag float! Cartesian Diver/Mermaid Activity: Make a Cartesian Diver, using a straw, rubberband, paperclips, water and 2L bottle. See the diver float. Squeeze the bottle and watch the diver sink.
Research Questions: How do weight, size and shape affect whether objects sink or float?
Resources: