Making your own sidewalk chalk is lots of fun. We chose to make dinosaurs but you could make any shapes. Wrap them up in little box and some coloured cellophane to make a cute present or party favours.
: 15 minutes plus at least 3 days drying time
: Any Age
Tempera paint powder works best to give an even colour but it is quite expensive. Liquid tempera (poster) paint also works well enough- we used liquid paint here.
We tried small molds (ice cube sized) and jumbo molds (muffin sized). We preferred the smaller finished chalks as they dried much faster.
We preferred the small dinosaur chocolate mold which cost 2 dollars from the local supermarket
With liquid paint, add the paint to the water first...
...then add plaster powder and stir
Your sidewalk chalk is now ready to use - have fun!
Jumbo dinosaurs took quite a few days to dry out
We also made pretty multi coloured stars by adding a small layer of one colour, leaving to set slightly, then adding a layer of another colour
Use a disposable tub to mix the plaster - you can then throw away the tub after you have finished. As it could set in pipe work, you won't want to wash any down the sink. Be careful not to inhale plaster dust and try to minimize skin contact with wet plaster.
#5 to 10s
#Plaster of Paris
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