"Cannabis" is the common name for a group of green, leafy plants that have been grown around the world and have been used for thousands of years by various cultures. "Marijuana" refers to the More →

Millions of people travel by airplane every day, but how many of them actually know how planes get in the air, stay in the air, and safely get passengers to their destination? Readers will… More →

The body has many different systems that help us do different things. Our muscles and bones let us move around. The immune system protects us against getting sick. All parts of our body help… More →

Readers will see kids like them, overcoming challenges and living their lives to the fullest, in Healthy Brain. Active photos, bright layouts, and exhilarating design features surround… More →

The world is full of so many different foods. Proteins help our bodies grow and repair themselves. Carbohydrates give us energy to do things. The foods we eat help us live well. A mix of… More →

There are so many ways to get moving. Going on a run helps keep our heart healthy and strong. Doing push-ups makes our muscles stronger. Exercise helps us live well. A mix of scientific… More →

Readers will see kids like them, overcoming challenges and living their lives to the fullest, in Healthy Habits. Active photos, bright layouts, and exhilarating design features surround… More →

The body has many different systems that help us do different things. Our muscles and bones let us move around. The immune system protects us against getting sick. All parts of our body help… More →

A phone rings, gym shoes squeak, a dog barks--sounds are all around us! The sense of sounds helps us learn more about the world. But how do we hear? Simple text breaks down the science of the More →

High-intensity interval training (HIIT) is one of the most popular exercise methods in the world today. This title examines the history of this versatile way to work out. It also explains… More →