What you need2 1/2 cups flour
2 1/2 cups of dirt
1 cup sand
1 1/2 cups of salt
Small Plastic toy dinosaurs
(available from toys stores)
These treasure eggs are great for classroom activities.
To make the dough mix all the dry ingredients together: flour, dirt, salt and sand. Gradually stir in enough water so that the mix holds together.
Shape handfuls of dough around the small plastic dinosaurs into egg shapes.
Give these rocks up to 4 days to dry rock hard.