Amazing Anti-Gravity Water Ping Pong Ball experiment.

Amazing Anti Gravity Water with Ping Pong Balls Experiment Made for parents and teachers Science Kits and more https://elementarysciencen.wixsite.com/sciencekits Kids Fun Science Online Store https://teespring.com/stores/kids-fun-science Chapters 0:13 Ping pong balls float 0:17 1st Experiment 0:30 ping pong ball floats 0:34 2nd Experiment WHAT YOU NEED: - water bottle - ping pong ball - bowl - something to pour water - Box Cutter SET UP 1) With adult supervision cut the bottom of the water bottle 2) Turn the bottle upside down and put ping pong ball inside bottle 3) Pour water very fast into the bottle. Ping pong ball should stay at the bottom of the water bottle. 4) Place your hand on the under the bottle and the ping pong ball will float to the top Science Behind it The setup in the image appears to be a classic science demonstration involving buoyancy and Archimedes’ principle. In this experiment, a plastic bottle is filled with water and inverted, allowing water to flow out through the neck into a glass below. A ping pong ball inside the bottle ends up at the neck as the water pours out. Normally, a ping pong ball floats in water because its density is lower than water’s, and the buoyant force (equal to the weight of the displaced water) pushes it upward. However, in this specific setup, the ball doesn’t float up into the bottle because there is no water beneath it to create the necessary pressure difference for buoyancy to act effectively. The water flows out around the sides of the ball through small gaps at the neck, but it doesn’t get underneath the ball. Without water below to exert higher pressure on the bottom surface of the ball (compared to the top), there’s no net upward buoyant force. Instead, the pressure from the water above pushes downward, combined with the ball’s own weight, keeping it in place at the neck. If water were able to get under the ball (e.g., by tilting or manipulating the bottle to create space), buoyancy would kick in, and the ball would float up. But as shown, the outflow prevents that, making it seem counterintuitive. This highlights a nuanced aspect of Archimedes’ principle: buoyancy depends on the object displacing fluid in a way that creates a pressure gradient across its surfaces. By placing your hand on the bottle it creates water under the ping pong ball and it floats #archimedesprinciple #archimedes #buoyancy