When I play outside, sweat starts to roll down my face. Drip, drip, drop! Why does my body do that? Explore the body science of sweat. Learn how it happens, why it keeps you healthy, and more.

When I'm really tired sometimes I stretch and out comes a big yawn! Why does my body do that? Explore the silly body science of hiccups. Learn how they happen, what can be done to stop yawning, and more. Lively text and bright layouts makes this a perfect fit for budding scientists asking big body questions.