Rainbow Keystone Arch Build Set

Teach your kids about how a keystone can keep an arch standing.Prints fast and easy, rainbow side down so there is very minimal waste. A keystone arch is a special type of arch used in architecture, which relies on physics to stay stable. Here's how it works:Shape and Pressure: An arch is a curved structure that helps distribute weight. When weight is placed on top of the arch, instead of it pushing straight down, the curved shape transfers the pressure along the sides. This is called compression.Keystone's Role: The keystone is the central, topmost stone in the arch. It is the final stone placed, locking all the other stones in place. When the keystone is put in, it forces the two sides of the arch to press against each other, helping the arch hold together.Stability through Compression: Once the keystone is in place, all the stones in the arch push against each other and transfer the weight outward along the sides. The arch stays stable because the pressure is spread evenly a