To teach children about the concepts of sink and float

A plastic dishpan or a large tub
Items that sink
Items that float

1. Have your child predict whether he/she thinks that the item will sink or float
2. Have your child test the item to see if it sinks or floats
3. Ask your child to categorize items that sink and float

A few notes:
*You can use items from around the house. Some examples are pennies, paperclips, balls, legos, crayons, straws, string, corks,
*You can draw a line down the middle of a piece of paper and have your child record the items that sink and float. *You can make a discovery bottle by adding items that sink and float to a water bottle.
*You can try this experiment in the bathtub or in a water table outside.
*You can fill up a baby pool and try this experiment with larger items.
*For older kids, you can talk about density and buoyancy.