Homemade Lava Lamp Experiment
Ages: 6-12 Objective: Engage children in a visually captivating experiment to explore density, polarity, and the interaction between oil and water. Materials Needed: Clear plastic or glass bottle Vegetable oil Water Food coloring (assorted colors) Alka-Seltzer tablets (or effervescent antacid tablets) Funnel (optional) Spoon (for stirring) Procedure: Prepare the Bottle: Fill the clear bottle about two-thirds full with vegetable oil. Add Water and Food Coloring: In a separate container, mix water with a few drops of food coloring. Use a funnel to carefully pour this colored water into the bottle with oil, leaving some space at the top. Observe the Layers: Watch as the colored water sinks through the oil and settles at the bottom of the bottle. Discuss with children why this happens (difference in density). Add Alka-Seltzer Tablet: Break an Alka-Seltzer tablet into smaller pieces and drop one piece into the bottle. Watch the Reaction: As the tablet reacts with the water, it releases car