Hail is formed when strong winds called updrafts blow raindrops back up into the clouds. It is so cold in the clouds that the rain drops become supercooled, which means they are colder than the freezing temperature of water but the still remain a liquid. When these supercooled raindrops bumb into a piece of ice or dust, they will freeze in an instant! The frozen rain starts to fail as hail, but if the updraft is strong enough it can be blown back up into the cloud over and over again getting bigger and bigger!
In this video, Ms. Amelia will show you how to turn liquid water into frozen hail in an instant!
Freeze water instantly!
Watch as Miss Amelia Miss freezes water instantly to form hail!
For more information on this topic, check out the following websites:
“Inside a Baseball Sized Hail Storm”: https://video.nationalgeographic.com/video/news/00000144-0a35-d3cb-a96c-7b3d2f220000
Hail and Hailstones: https://www.youtube.com/watch?v=lxv_M0p_I2A
“Severe Weather 101 – Hail” Reading: https://www.nssl.noaa.gov/education/svrwx101/hail/
Hail Size Estimation Chart: https://www.weather.gov/boi/hailsize
Snow and Hail Science Projects: https://learning-center.homesciencetools.com/article/snow-and-hail-science-projects/
Classroom Teachers! Download the student worksheet and instructor guide to complete activity with your students.