floating and sinking

[sophie_1003]

Want to do a floating and sinking activity with a group of reception children and was wondering if anyone has any ideas for things that won't behave as the children might expect, eg something heavy that will float.
Also- if shaped into a boat, will pasticine float?

[vulcan]

try
www.kids-science-experiments.com
tab down on the left to floating and sinking,might be some help.

[sophie_1003]

thankyou v much!