How To Make Your Own Thermometer | Homemade Bottle Thermometer For Kids | Weather Experiments

Kids and adults of all ages can have fun building their very own DIY homemade thermometer to measure the temperature! Learning how to make your own thermometer is a great way for kids to learn and discover how real thermometers work to measure temperature. Supplies Needed: Narrow Neck Glass Bottle Straw Modeling Clay Water Rubbing Alcohol Food Coloring Bowl of hot water Bowl of ice water The science behind this homemade bottle thermometer for kids: Your homemade thermometer works in the same way that real thermometers do! As the water and rubbing alcohol mixture heat up, it expands and pushes up into the straw. When the water and rubbing alcohol cool down, the molecules contract, and the fluid in the straw begins to drop. Real-life thermometers typically use mercury or alcohol as the rising and falling fluid inside because they have a much lower freezing point than water. Get instructions on how to make your own thermometer right here: Don&forget to subscribe for more science activities and experiments for kids! Follow us at