Busy Bees Holiday Club, based at Ledbury Primary, has been taken over by "mad scientists" this week.
Holiday Club manager, Sylvia Knott said: "We've enjoyed crazy experiments and seeing exciting explosions and we've also been growing crystals and making waves all through the week.
"We have budding junior scientists helping with every crazy plan and developing wicked ideas of their own to try out on their friends."
She added: "Busy Bees will be investigating the Rainforests and all its flora and fauna. Children will be creating junk model wildlife and tasting exotic fruits from the region as well as exploring creepy crawly habitats and much, much more."
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