Danielle Lindner/Parenting Coach on Instagram: "✨Easy STEM Activity for Kids: Grow an Egghead!✨ Looking for a fun and educational science project for kids that actually works at home? Try this easy STEM activity that teaches kids how plants grow while keeping them entertained and learning. Parents love this simple hands-on science experiment for preschoolers, kindergartners, and early elementary students. ✅ Start by placing an egg or potato on top of a plastic cup or bottle filled with water. ✅