Berlin biochemist and magician Oliver Grammel presents this 70-minute interactive science show, inviting children to join in as he performs striking chemistry-based tricks: chocolate treats burst in a vacuum or shrink under pressurized air, copper coins appear silvered and gilded, blue cloths turn red, and red cabbage seems to turn green. The show complements school chemistry lessons and keeps the audience closely involved throughout.

Details can change — check the event’s website before you go.