After what seemed like the never-ending summer, autumn has finally arrived. With the significant change in temperature, we decided it would be a great time for building weather instruments. I've mentioned before that we love the Smithsonian Maker Lab books. We particularly love the the Maker Lab Outdoors book, which has a chapter on weather instruments.
We placed the glass bottle into a bowl of hot water and at first nothing happened. When we were just about to give up, the water in the straw began to rise. We then placed the bottle into cold water and watched as the water moved down the straw. The Maker Lab book explained how this outcome is caused by the reaction water molecules have to hot and cold. The book then applied this to body temperature when one is sick, which was very relevant in our family this week because Anne has been dealing with strep throat.
I am excited that we have two more weather tools to make. We will be making a rain gauge and an anemometer. I'm going to be honest and say that I have never heard of an anemometer prior to reading this book, but it apparently measures wind speed. I will do my best to get pictures of these experiments up to share with you.