Why can cornstarch goo feel solid and liquid?
The classic kitchen-mess puzzle: the same cornstarch goo can drip from a spoon yet push back against a quick hit.
Talk about it
- Mix a thick cornstarch suspension and compare one quick tap with one slow press.
- Name the ingredients that stay the same and the one test variable that changes.
- Describe what a wall-to-wall chain of touching grains could carry.