Sandstone is like a big castle made of tiny grains of sand that stuck together over time. Remember how you like to play in the sandbox and build sandcastles? Well, imagine that the sand in the sandbox got buried under more and more sand over thousands and millions of years. The weight of all that sand pressed the tiny grains together so tightly that they became a solid rock. That rock is called sandstone!
Sandstone is really tough and strong because of all the little grains of sand that are stuck together. Sometimes, other things get mixed in with the sand before it becomes sandstone. This can make the sandstone look different colors, like brown, yellow, red, or even white!
People have been using sandstone for thousands of years to build all kinds of things, like houses, buildings, and even statues. Some famous landmarks, like the Sphinx in Egypt, are made of sandstone. It's also a popular rock to use for making pathways and garden decorations because it looks pretty and is weather-resistant.