https://www.science-sparks.com/disappearing-spiders-halloween-refraction-experiment/?utm_source=rss&utm_medium=rss&utm_campaign=disappearing-spiders-halloween-refraction-experiment Easy Science Experiments and STEM Challenges for Kids Wed, 02 Oct 2024 12:24:55 +0000 hourly 1 https://wordpress.org/?v=6.8.1