Kids First Engineering Design Decorative Traits like Hard Shell and

Traits like Hard Shell and Horns protect against carnivores

Typically delivers about 45–90 minutes of thoughtful

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They ranged across the United States between 20 and 30 million years ago

Kids First Engineering Design Decorative Traits like Hard Shell andSpeed, motion, and hands on discovery come together in this engaging physics and engineering kit designed to spark curiosity in young learners. With 20 interactive models to build and 22 exciting experiments to explore, this set introduces foundational STEM concepts through actionthink racing vehicles, spinning windmills, and balancing structures. From constructing a crane to testing an all wheel drive ATV, kids can dive into real world applications