When should a child begin learning about science?
I say, as soon as the child is able to experience their senses--probably a few months after conception.
But in terms of a curriculum, I found a really good book to provide some early guidance. It is called: 365 Simple Science Experiments with Everyday Materials
Of course, every child is different and learns at varying rates, but whenever a child demonstrates curiosity about the world around them, encourage exploration in the early years. They will appreciate the hands-on experiences they had when they were younger once they get into the later years of grade school.
I believe it is better to focus on formal language skills early (along with Math). Strong reading/writing skills built during the early years will enable science concepts to be grasped more effectively down the road.
