Bring a splash of colour and curiosity to early science experiences with these Blue Litmus Paper Strips. Designed to introduce simple chemical reactions in a clear, visual way, each strip changes from blue to red or pink when it comes into contact with an acidic solution below pH 4.5. This instant colour change creates a moment of surprise and excitement, making it ideal for hands-on exploration in childcare and early learning environments.
Supplied in a sturdy plastic container, the pack includes 100 paper leaves, ready for repeated use across group activities, learning stations, or guided investigations. Although simple to use, these strips are made to professional laboratory standards. Each product is carefully designed by a team of laboratory professionals and experienced engineers, using high-grade raw materials and manufactured to international quality standards. This ensures excellent durability and reliability, even with frequent handling.
Whether used with water play, food-based experiments, or simple science demonstrations, these litmus strips encourage observation, discussion, and early scientific thinking in a fun and accessible way.
Educational benefits
Introduces early concepts of cause and effect through colour change
Supports sensory learning by combining visual discovery with hands-on interaction
Encourages curiosity and questioning about everyday substances
Builds early science vocabulary such as colour, change, and reaction
Classroom & play activity ideas
Test different liquids such as lemon juice, vinegar, or water and compare colour changes
Set up a science table where learners predict outcomes before dipping the strips
Use during water play to explore mixing and observing results
Create a simple colour chart showing before-and-after strip changes
Specifications:
Turns pink or red when exposed to acidic solutions (pH below 4.5).
Supplied in a durable plastic container.
100 paper leaves included per pack.
Each leaf measures approximately 63.5 mm x 10 mm.
Manufactured for consistent quality and reliable results.