Police Officers Hearing the Sound

As the rain poured down, soaking everyone and turning the ground into a squishy mess, Gabby noticed something unusual. She heard that strange sound again. She quickly got hold of an officer, and they both bent down, pressing their ears on the ground.

To their surprise, the officer also heard the mysterious noise, and he had an interesting idea. He told Gabby that using sound to find things beneath the ground isn’t just something from science fiction. Archaeologists actually use a technique called ground-penetrating radar to uncover hidden treasures and ancient structures.

Next: Gabby couldn’t believe what the officer suggested.