Secret Spy Lab

Every good spy needs a secret way to communicate.

With the Playventor Secret Spy Lab, kids can create and reveal hidden messages using a simple invisible ink experiment. What looks like an ordinary blank sheet can hide a secret message waiting to be discovered.

Kids write, experiment and reveal their messages while exploring how everyday materials can react with an indicator to create a visible colour change.

What's Inside the Kit?

• Baking Soda – 30 g
• Indicator Powder (Turmeric) – 30 g
• Isopropyl Alcohol – 30 ml
• Brush × 1
• Cotton Swabs × 4
• Sheets × 2
• Cups × 2
• Tub Spoon × 1
• Step-by-step Instruction Manual

What Will Kids Discover?

🕵️ Invisible Ink – Learn how hidden messages can be created and revealed.

🧪 Chemical Indicators – Discover how an indicator can help reveal a hidden message through a colour change.

🔬 Simple Chemistry – Explore how different materials interact with each other.

👀 Observation – Look closely and notice changes that aren't visible at first.

🧠 Problem Solving – Follow clues, test ideas and uncover the hidden message.

Your Mission: Reveal the Secret

Write the message.

Let it disappear.

Then begin the investigation.

Using the materials in the kit, kids can reveal the hidden writing and discover the science behind the transformation.

It turns a simple sheet of paper into a secret spy mission—with chemistry hiding behind every clue.

Perfect For

• Kids who love spies, mysteries and secret codes
• Hands-on chemistry activities
• DIY STEM learning at home
• School science projects
• Detective and spy-themed activities
• Birthday parties and group activities
• Curious young investigators

The message is hidden. The science reveals it.

Adult supervision is recommended. Follow the instruction manual carefully. Isopropyl alcohol is flammable and should be kept away from heat, flames and ignition sources. Use the materials only as directed and do not ingest any kit materials.