EYFS Fizzy Colour Tray is a three-page early-years activity booklet introducing children to safe, hands-on chemical reactions through messy play. Cover: Introduces EYFS Messy Play: Safe Chemical Reactions with a colourful children’s science image and the subtitle, The Fizzy Colour Tray – An engaging introduction to cause and effect. Practitioner guide: Provides preparation time, materials, setup instructions, a simple explanation of the vinegar and bicarbonate of soda reaction, and a supervision and ventilation safety note. EYFS framework mapping: Links the activity to Understanding the World, Physical Development, and Communication and Language, including cause and effect, fine motor skills, hand-eye coordination, vocabulary, and expressive language. The resource uses a playful, classroom-friendly visual style with bright colours, bubbles, and clear sections for easy use at home or in an early-years setting.