500
The ability to sink or float is a property of matter. Name one item that would sink if you dropped it into a bathtub. Name one item that would float if you dropped it into a bathtub.
Float: can be anything that does not weigh very much (pencil, crayon, rubber duckie, rainbow loom bracelet, grapes, etc.)
Sink: can be anything that has more weight
(brick, backpack, desk, can of green beans, etc. )