https://www.science-sparks.com/valentine-magnet-maze-stem-challenge/?utm_source=rss&utm_medium=rss&utm_campaign=valentine-magnet-maze-stem-challenge Easy Science Experiments and STEM Challenges for Kids Wed, 05 Feb 2025 12:37:33 +0000 hourly 1 https://wordpress.org/?v=6.8.1