TV Guide CBBC Tuesday

Get ready for incredible experiments and mind-bending puzzles to impress your friends. Owain and Tilly are here to explore epic science tricks to try at home and showcase brand new technology innovations from around the world! In this episode, discover why a boomerang always comes back, search for forensic evidence to catch a cake thief, hitch a ride in a car with no driver, and see a ball defy gravity!

Ricky wishes he could go back in time after spilling paint on a priceless rug, and when he downloads 'App to the Future', he realises that anything is possible. He meets renowned Catalan artist Antoni Gaudi to make a salt-dough lizard, and learns how to create wings for his shoes. Plus, he produces art with vacuum cleaners

Steve Backshall explores the wildlife of British Columbia, Canada. A search for a particularly large sea lion results in an unexpected encounter with a killer whale, and the naturalist tries his hand at becoming a raccoon in Vancouver

Operation Ouch! celebrates its tenth birthday with a party like no other. Dr Chris is in charge of decorations, Dr Ronx has sorted the cake, Mr Grumbles is on the decks with some top tunes, and Dr Xand has sent out all the invites - or has he?! In this special episode, the doctors celebrate a decade of gross alerts, catch up with some awesome Ouchers, and fail to stop mini Xand from eating the cake before it's time. Today's British Sign Language sign is 'Happy Birthday!'

The Odd Squad investigates strange events. Special agents from the Big O's office threaten to shut down Odd Squad.