Your eyes are like two tiny movie cameras inside your head. They are sending a steady stream of pictures back to your …

Your ears are organs. They aren’t just the flaps of skin you can see! Your ears stretch deep into the skull. They …

Sense organs are specially developed parts of your body. For example, each of your eyes has a retina for detecting lig…

What do Kidneys do? Your kidneys make the waste liquid your body has to get rid of. You have two kidneys, one on eac…

What is digestion? When you eat, your food begins a long journey through your body. Most of your food is broken down…

Your blood has lots of different jobs to do as it travels around your body.  It carries the oxygen you have breathed…

How do we breathe? As you breathe, your chest moves in and out, and up and down. Inside your chest, there are two fl…

The human body has 639 muscles. Not all are joined to your bones. For example, muscles line your blood vessels to k…

The human body has 639 muscles. Not all are joined to your bones. For example, muscles line your blood vessels to ke…

Human body moves in many different ways. You can bend, stretch, turn, and twist. You can move because your bones move…

Humans have about 200 bones in the body, which are joined together and make up the skeleton. Your skeleton helps give y…

Bones are hard tissues that are living parts of your body, just as your brain and heart are living parts. Bones contain…

Humans have about 200 bones in the body, which are joined together and make up the skeleton.  Your skeleton helps give…

Most of the vertebrates that live in the ocean are fish. Some mammals, reptiles, and birds live there, too. There is …

The world is a dangerous place for most animals. Many need to defend themselves against other animals that want to e…

Generally bears enter hibernation in early October and emerge sometime in April or May. Hibernating animals breathe …

What Is Hibernation? In those parts of the world where some months of the year are very cold, mice and other small …

Vertebrate animals have a spine, or backbone, and a cranium (brain case).  The spine is a long column of bones calle…

1. You need: 2. Draw a map of an imaginary island. 3. Draw and invent names for these things on your map: 4. Draw…

Who was Marco Polo? Marco Polo was the first European to travel to Asia and tell his story. His book, "…

1. You need: 2. Choose a star. Glue some photos onto the sheet of paper. Cut out or write their name. 3. Fold the s…