"Hi Nelson, did you know our body has special systems to keep us strong and healthy?"

"Hi Diana, wow, I can't wait to learn how they all work."

"The circulatory system comprises the heart, blood, and blood vessels. The heart is like a pump—it pushes blood through your body. The blood carries oxygen and nutrients to all your organs and muscles. Blood travels through tubes called arteries and veins. When you exercise, your heart pumps faster, sending more oxygen to your muscles. It’s always working to keep your body healthy!"

The Respiratory System 

"The respiratory system helps us breathe. When we breathe in, our lungs take in oxygen from the air. This oxygen moves into our blood and goes to all parts of our body. When we breathe out, our lungs get rid of a gas called carbon dioxide. Our lungs are always working to give us the oxygen we need to stay healthy and strong!"

The Digestive System

"The digestive system helps us break down food. When we eat, food goes into our stomach and intestines. Our body takes what it needs for energy, and the rest leaves the body. It helps us stay strong and healthy!"

The Muscular System

"The muscular system helps us move. Our muscles work like little motors in our bodies. When we want to run, jump, or even smile, our muscles make it happen. We have muscles all over our body that help us do everything we do!"

The Skeletal System

"The skeletal system is made of bones that give our body shape and support. Our bones help us stand up, walk, and protect our organs. We have 206 bones in our body, and they work together to keep us strong and safe!"

The Nervous System

"The nervous system helps us feel and think. It includes our brain, which controls everything we do. Nerves carry messages from our brain to the rest of our body so we can move, see, hear, and even feel. It helps us react to everything around us!"