Let each of the children fill one of the baby food jars halfway with water and add two or three drops of food coloring. Fill each child's jar to the top with the oil. Screw the lid on tightly. If necessary, seal the lid with hot glue and allow it to cool. Let the children shake their wave jars back and forth to create waves.
Place play dough in the bottom of the ship.
Glue a triangular-shaped sail to a toothpick. Stick the toothpick into the play dough. The children can use them at the end of the week to take their loot home with them in or to store their gold rocks from the Sandbox Treasure art project. We have learned about feet, inches, centimeters and meters. Inside the lid, it says the measurement they were searching for.