When did Blue Peter Season 60 Episode 21 air?
Blue Peter Season 60 Episode 21 aired on May 17, 2018.

You won't believe your eyes when we set fire to water using miniscule science. There's live music from Una Healy. Also, George is back to kick-start the Blue Peter garden.
Direct answers for episode-level questions and details.
Blue Peter Season 60 Episode 21 aired on May 17, 2018.
Runtime information for this episode is not available yet.
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