A simple experiment using water and corn starch will simulate the properties of Plastic Rock. Follow these simple steps and enjoy your experiment!
1) Put one cup of cornstarch into a shallow pan (pie plate works well).
2) Add 2/3 cup of water.
|Plastic Rock is slowly liquifying from hand above to below.|
Note: if you don't see this behavior, your mixture may be incorrect. If it remains liquidy, add more cornstarch; if it is too hard, add water a little at a time until you get the desired consistency.
Happy home schooling!