Ready to flip out? Try this science trick and explore the chemistry of water with this fun and easy experiment! 👇 We'll show you how to flip a bottle upside down without any spills. All you need is some water and toothpicks. This is a great activity to try with kids and perfect for a rainy day. Let's see if you can master the bottle flip challenge! Want to know what's going on? Water has cohesive properties, meaning it sticks to itself. It is also adhesive, meaning it likes to stick to other surfaces too! Although air wants to enter the bottle when it’s flipped upside down, that force isn’t strong enough to counteract the water being attracted to both itself and the flyscreen, so the water stays put inside the bottle. When slowly tipping the bottle sideways, however, the increased pressure of the water on a certain area of the flyscreen is too much, and the air can flow in. But when you insert a toothpick, the water molecules form a seal around it and prevent lots of water from fall...