![Do It](../web_assets/tophead_doit.gif)
![photo of a penny](../web_assets/superdoit/doit_penny_drop.jpg)
![grab](../web_assets/superdoit/do_it_grab.gif)
- a penny, and other coins
- an eyedropper
- water, or other liquids
![how?](../web_assets/superdoit/do_it_how.gif)
- Set a dry penny on a table or counter top.
- Use the eyedropper to slowly place one drop of water at a time onto the penny. Keep count of how many drops you add.
- Keep adding drops until the water spills over the edge of the penny.
- What's the greatest number of drops you can add without spilling? What happens if you try milk, or vegetable oil, instead of water?
![what happened?](../web_assets/superdoit/do_it_what_happened.gif)
![Try the experiment, tell us what happens and watch DFTV for your results!](../web_assets/superdoit/box_try_the_experiment.gif)