Science books for 4 year olds - what's nice?

[Sanne Panne]

We have Usborne's "Look Inside Your Body" book which is the only "Look Inside" that I know of that a 3.5 year old can understand. We're looking for one or two more "science" books for our daughter's 4th birthday. She's obsessed with the Natural History museum book and the body book I just mentioned. Anything ranging from day-to-day mechanics to zoology, geography, anthropology, geology, simple physics/chemistry and so on can be nice.

Also wondering about good quality wall posters - we have the Dino Children's Map of the World and the Open University Tree of Life poster.

Any recommendations are welcome!

(and no we're not academically obsessed, we just want to add a couple of books to our small collection :))

[redjam]

Okido have just launched their 'Body Book' which is perfect for that age-group. In fact, I think you can buy the Okido science magazines as back issues - they are like mini-books.