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DIY Lava Lamp 🧡 I always struggle to find alka seltzer tablets here in New Zealand so this lava lamp experiment only uses good ol’ baking soda, vinegar and oil! Materials: Oil 2 Tbsp baking soda 1 cup vinegar Food colouring Jar Dropper Method: • Add baking soda to a jar • Fill the jar 3/4 full with oil • In a seperate bowl mix vinegar and food colouring • Use a dropper to add the vinegar to the jar • Observe ✨The Science✨ The carbon dioxide produced when the vinegar reacts with the baking soda

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