Raindrops drumming on the window couldn't dampen our spirits in science class today! We did this awesome experiment to see how much air expands when heated. Imagine two sealed bottles connected by a straw – one filled with air, the other with water. We added another straw from the bottom of the water to a graduated cylinder (a chain reaction!). Then, the fun part! We heated the air-filled bottle (by laying the bottle in scalding water). As the air inside got hotter it expanded and traveled through the straw, pushing down on the water in the other bottle. The water had nowhere to go except through the other straw at the bottom, thus filling the graduated cylinder. The coolest part? The volume of water pushed out should be the same volume as the amount of hot air expanded in the first bottle! It was like magic, but with science! It took me a while to wrap my head around the whole thing, but figuring it out felt amazing. Science is pretty cool, right?