Do you know how to make it rain inside or make a cloud in a bottle? We can, because we have a fabulous teacher! Miss O'Reilly put a metal pan over really hot, boiling water and it rained. There were ice cubes in the pan. It rained because the water cycle happened in the boiling of the water and with the metal pan. We needed ice in the pan to cool it down because when something cold meets the water vapor in the air, it condenses, which means that it turns from a gas to a liquid. In a nutshell, it was a fun experiment!
To make a cloud, water droplets need to have something to condense around. That could be a speck of dirt or smoke. That's why we used a match (on fire) in a bottle with warm water in it. We sealed it up and then Miss O'Reilly squeezed it. You also need pressure to make a cloud form. It was really cool to see a cloud in the bottle.
We had our Unit 7 test this week. Tomorrow we have a science test about water. Don't forget to study with the reference sheet.
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