DIY Ocean-Inspired Lava Lamp

Arthur says: “Glimmering bubbles rise like ocean currents in this fizzy experiment! With just a few kitchen ingredients, you’ll create a lava lamp that dances like bioluminescent jellyfish in a bottle.”

You’ll Need:

• 1 clean plastic bottle or jar
• Vegetable oil (enough to fill 2/3 of the bottle)
• Water (1/3 of the bottle)
• Blue food coloring
• Alka-Seltzer tablet (or generic antacid)
• Optional: glitter, glow-in-the-dark paint drops

Steps:

1. Fill the bottle 2/3 full with vegetable oil.
2. Fill the rest with water, leaving a little space at the top.
3. Add a few drops of blue food coloring. Watch as it sinks!
4. Drop in some glitter or glowing paint if using.
5. Break an Alka-Seltzer tablet into pieces and drop one piece in. Watch the show!
6. Add more tablet pieces whenever you want to reactivate it.

How It Works:

Oil and water don’t mix. The antacid reacts with the water to release gas bubbles that carry colored droplets up—then gravity pulls them back down. Just like an underwater light show!