Lava Lamp: Oil vs 🌈 💧Water Density Immiscibility ⚗️Experiment with 💥Alka Seltzer (Science 🔬⚗️⚖️ 101 🎥Series 🎇)
My children have been fascinated with Science over the summer, and it has been their favorite subject because the result is usually unexpected, the activity is 🙌🏻hands-on, utilizing many 👁✋🏻 scenes, and most importantly, it is fun! So, today we are experimenting with the density of oil vs. water by making a "lava lamp."
Now, what will happen if we add Alka Seltzer to our "lava lamp"?
Science mystery is💡revealed: Alka-Seltzer tablet reacts with water to make carbon dioxide gas. These bubbles attach themselves to the colored water and cause them to float to the surface. When the bubbles pop, the color sinks back to the bottom. And, answering Julia's question: "How come, we had mixed so many colors and the only color you see is green?" I guess, the children had added mostly the two primary colors: yellow and blue, creating a beautiful secondary color green!
Oil and water do not mix, but rather oil breaks up into small little drops, which float on the surface because water is heavier and denser than the oil. So while the water is sinking to the bottom, the oil is rising to the top, creating a beautiful display of bubbles going up and down.
When my children can not stop saying "Wow!" and 😃giggle, I know it was a perfect science experiment! The home-made lava lamp is a great way to entertain your children while exposing them to early chemistry. Unfortunately, this lamp does not last long.
For more on the property of water, see here "Pour 💦it in! Liquid Illusion (Science🔬⚗️⚖️ 101 🎥Series 🎇)."
For more on science experiments:
- See here a video-post "Float or Sink❓Tangerine 🍊 Science Experiment (Science 🔬 💡⚖️ 101 🎥 Series 🎇)." Also, see here "Walnut Shell ⛵Sailboats 💦Water Science Experiment (Science 🔬 💡⚖️ 101 🎥 Series 🎇). "
- For baking soda experiments: see here "Magic Balloon (Baking Soda and Vinegar Reaction) Science🔬⚗️⚖️ 101 🎥Series 🎇," and here a video-post "🌋 Erupting Volcano Science Experiment 🔬 💡⚖️ 101 🎥 Series 🎇."
- Also check out here "💛💙❤️Primary Colors, 💦Water & Paper Capillary Action ⌛️Timelapse ⚗️ Kids Science Experiment (🌈 Rainbow Walking Water)."
- For more on color-mixing, please see here " 👔 Father's Day🎈Balloon Color-mixing DIY Craft (Sensorial 🖐️👀👂👅👃 Activities 101 🎥 Series 🎇).