- Understanding of erosion and weathering as they observe the sandcastle slowly crumbling over time
- Introduction to the concept of buoyancy as they dig the moat and observe the water filling it up
- Observation of the effects of water on sand, including how it changes the texture and consistency of the sand
- Introduction to the concept of engineering as they plan and build the sandcastle, considering factors such as stability and design
- Introduction to the concept of measurement as they use their hands or tools to measure the height and width of the sandcastle
For continued development, encourage the child to experiment with different designs and shapes for their sandcastle, and to observe how these changes affect its stability and resistance to erosion. They can also explore different materials to use for building, such as rocks or shells, and observe how these materials interact with the sand and water. Additionally, they can learn about the different types of sand and how they vary in texture and composition.