Children’s Message February 18, 2026 Have you ever built a sandcastle at the beach? Maybe a tall one with towers, or one with a moat. Sandcastles are so fun to make. But what happens if you try to build a sandcastle with dry  sand? It just falls apart. It crumbles right through your fingers. So what’s the secret ingredient? Water! When you add a little water, something amazing happens. The sand sticks together. It becomes strong enough to build walls and towers. The water hel