Rocking stone

A rocking stone is a large rock that can be rocked back and forth, like a seesaw or a swing. Imagine playing on a playground seesaw with a big rock instead of a board - that's what a rocking stone is like.

But why can the big rock move? It's because of something called a "pivot point". Have you ever played with a lever, like when you use a broom to lift something heavy? The broom has a "fulcrum" or "pivot point" where it balances and can lift things easily.

A rocking stone also has a pivot point, but it's not a broom - it's the ground! The ground is strong and sturdy, so when a big rock is balanced in just the right spot, it can move back and forth.

People have been playing with rocking stones for a very, very long time - even before modern toys and playgrounds existed! Some rocks are so big and heavy that lots of people have to work together to get them rocking. But once they do, it's lots of fun to watch and play with!

So that's a rocking stone: a big rock that can move back and forth because of a special pivot point in the ground, and sometimes takes many people to get it moving.