Grow a Heart | Anatomy Model Polymer Heart Science Kit

Grow a Heart Water-Expanding Science Kit

Watch a small heart grow many times its original size with the Grow a Heart Science Kit. This hands-on STEM activity demonstrates the water-absorbing properties of polymers in a simple, memorable way.

Place the detailed heart model in water and observe it expand gradually over several days. Children can track its changing size, compare measurements, and explore how superabsorbent materials interact with water.

Equal parts science experiment and novelty toy, this growing heart makes a fun classroom activity, homeschool project, party favor, stocking stuffer, or unique gift for curious kids.

Features

• Water-expanding heart science experiment
• Demonstrates polymer absorption
• Grows many times larger when submerged in water
• Detailed heart-inspired design
• Encourages observation and measurement
• Fun hands-on STEM learning activity
• Suitable for homeschool, classroom, or independent exploration
• Compact and easy to gift

How to Use

Place the heart in a container of water, making sure it is fully submerged. Leave it in the water and observe its growth over several days. For added learning, measure and record its size each day.

Perfect For

• STEM and science activities
• Homeschool lessons
• Classroom experiments
• Birthday party favors
• Halloween novelty gifts
• Stocking stuffers
• Science-themed gift baskets
• Curious kids ages 8 and older

Recommended Age: 8+
Package Size: Approximately 5.25” × 2.5” × 2.5”

Safety: Not intended for consumption. Adult supervision is recommended. Keep the expanded heart and soaking water away from young children and pets.