Investigate the Human Body

How much can you lift? It doesn't really matter because muscles are needed for more than just lifting; they are needed for everything we do. This fascinating book about the muscular system shows how the cardiac and skeletal muscles work together to help the body do just about everything from running to blinking. Colorful and easy-to-follow diagrams help readers understand this essential system in the human body.

Our lungs are amazing organs, the stars of the respiratory system! Readers will be fascinated to learn what actually happens in their lungs to make it possible for them to breathe in and out, without even having to think about it. Accessible, at-level text is coupled with beneficial photographs and diagrams to aid in reader comprehension. Curriculum-oriented fact boxes offer further information to cultivate an early interest in human biology, while a concluding activity reviews key concepts about the lungs.

The food you eat is important. Just ask your digestive system, otherwise known as your gut. This exciting journey traces the route of food through the digestive system as it is turned into energy for the body. With the help of colorful photographs and diagrams, we learn how food moves down the esophagus, into the holding area of the stomach, and then through the intestines before making its way out of the body. Readers will be put on the alert to watch out for the bacteria; is it good or bad for us? The final chapter shows how we can use food to help balance the bacteria in our bodies.

How many times does your heart beat per minute? That depends on what you are doing. This informative book about the heart shows how blood pumps throughout the body. It explores the work of the atria and ventricles as they pump throughout the chambers and valves, bringing oxygen to the body's system. Colorful photographs and diagrams help make the concepts clear for readers, while a final activity encourages them to put their new knowledge to use as an authentic learning exercise.

A body without bones simply couldn't work! The skeletal system of the human body is the focus of this valuable volume, which centers on key concepts in elementary curricular content and uses at-level language to make biology accessible and interesting to young scientists. Readers will appreciate the fascinating fact boxes and many colorful photographs featured throughout the text. A concluding activity will help them understand how essential science concepts are truly relevant to their lives.

The brain is an amazing organ. It controls all of the actions, thoughts, and signals of the rest of the body. This informative book illustrates the parts of the brain and central nervous system and how they operate the entire body. With accessible text, fun facts, and color photographs, it explores the main parts of the cerebrum, cerebellum, and brain stem, as well as the neurons that connect parts of the central nervous system. This exciting ride through the body touches on the science of how we all operate.