Explainer Zone™ on Instagram: "This video captures a classroom science demonstration where a teacher is conducting a controlled experiment using a pumpkin, commonly done to explain principles of pressure, chemical reactions, or gas expansion in a safe, visual way. Pumpkins are often used in experiments because their hollow interior and thick outer shell make pressure changes easy to observe. In many classroom demonstrations, gases produced by a chemical reaction (such as from hydrogen peroxide d

Controlled Experiment | Definition & Example

Randomized Controlled Trial | Overview, Design & Examples