Lava lamps are super fun to make and it’s a good activity to learn about how different ingredientes interact with each other, creating cool chemical reactions. I’ve been wanting to make lava lamps for a while but I keep forgetting to buy Alka Seltzer, which is the most common ingredient when making this activity. So I found 2 cool ways of making this STEM activity without the need for Alka Seltzer.

Lava lamp with baking soda, vinegar and oil

Are you familiar with the volcano experiment? (The fun learning activity where you use baking soda and vinegar to create the volcano explosion.) The science behind these lamps is the same: the vinegar interacts with the baking soda creating a reaction. The bubbles are then trapped in the oil when they go up, creating the cool lava effect.

Tap on the story below to see how to make them.

Lava lamps with salt, oil and water

This is the easiest way to make lava lamps! It only requires 3 ingredients, and you can also add food coloring and glitter for a cooler effect.

Tap on the story below to see how to make them and why they work ☺️.

I hope you find these 2 ways of making lava lamps super useful and have fun making them. Don’t forget to upload your pictures and tag me on Instagram!