Once we'd got our results we thought we'd share them with all our mums and dads, so we wrote some letters to tell them what we'd found out. We put the letters in envelopes, found out our addresses from the school office (thank you Mr Farrell!), and invited some parents to walk to the letter box near our school with us.
Thanks to the parents who were able to come with us - it made us feel much safer having so many helpful grown ups with us. Thanks also to the parents who've already let us know that they've received their letters. Feel free to write back to us - you can post letters to us at school or message us here or on Twitter - as we'd love to know what you think about our investigation.