I'm using the following to try to explain maps. (that's an abstract thought for a young one)
And I got the following map project from my sister. My niece made something similar in preschool This is not the finished project. I'll have to update when this is done.
You draw out outlines of the continents, and with a safety pin, punch out the continents. This will be a long going project I know. After they are all punched out, I'll have Thing 1 paint a large piece of paper blue, and we'll attach the continents with rubber cement.