Christmas Invisible Ink Recipe 🎄 Materials: 1 Tbsp baking soda 1/2 cup of hot water 3-4 pumps of hand sanitiser Pinch of turmeric 2x cups Cotton buds or fine tip paint brushes Method: • Dissolve 1 Tbsp of baking soda in 1/2 cup of hot water • In a second cup, mix hand sanitiser and turmeric • Using a cotton bud or brush, write or draw with the baking soda mix • Let dry • Paint over your message or drawing with the hand sanitiser and turmeric mixture #invisibleink #science #experiment #scienceexperiment #scienceathome #scienceforkids #kidsscience