Children at Treehouse Pre-School have been celebrating the nursery's high rating in the ECERS assessment from Buckinghamshire Council's Early Years department.
Here, a boy is exploring blowing bubbles using a plastic bottle with the end cut off and a flannel over the end - an activity from 50 Fantastic Ideas for Science Outdoors by chairperson Kirstine Beeley.
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The best photo received will win £30 worth of books and posters