https://www.science-sparks.com/does-salty-water-freeze-science-investigation/?utm_source=rss&utm_medium=rss&utm_campaign=does-salty-water-freeze-science-investigation Easy Science Experiments and STEM Challenges for Kids Thu, 16 May 2024 13:06:23 +0000 hourly 1 https://wordpress.org/?v=6.8.1