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Human Body

The human body is an amazing thing. It is made up of various systems that work together to keep us breathing, eating, thinking, growing and playing. Find out more about everything from the brain in your head to the bones in your feet.

Video thumbnail: Science Trek D4K: Skin

Science Trek

D4K: Skin

Beauty may be only skin deep, but your skin does more than make you pretty. Find out.

D4K: Skin

Video thumbnail: Science Trek D4K: Eyes

Science Trek

D4K: Eyes

Why do they call it an eye ball?

D4K: Eyes

Video thumbnail: Science Trek D4K: The Heart

Science Trek

D4K: The Heart

Why is the heart one of the most amazing “machines” in the world?

D4K: The Heart

Video thumbnail: Science Trek D4K: Viruses

Science Trek

D4K: Viruses

How do viruses make you sick?

D4K: Viruses

Video thumbnail: Science Trek D4K: Hearing

Science Trek

D4K: Hearing

What is the connection between your ears and being able to stand upright?

D4K: Hearing

Video thumbnail: Science Trek D4K: Teeth

Science Trek

D4K: Teeth

Why do good teeth and good health go together?

D4K: Teeth

Video thumbnail: Science Trek D4K: Body Waste

Science Trek

D4K: Body Waste

A complex set of glands, organs, and processes help remove waste materials from our bodies

D4K: Body Waste

Video thumbnail: Science Trek D4K: The Brain Show

Science Trek

D4K: The Brain Show

Your brain is as powerful as it is mysterious.

D4K: The Brain Show

Video thumbnail: Science Trek D4K: Sports Physiology

Science Trek

D4K: Sports Physiology

Learn how scientists can improve an athlete’s performance and help prevent injuries.

D4K: Sports Physiology

Video thumbnail: Science Trek D4K: Skeletons

Science Trek

D4K: Skeletons

Your body is made up of 206 different bones. Find out more about your skeletal system.

D4K: Skeletons

Video thumbnail: Science Trek D4K: Nervous System

Science Trek

D4K: Nervous System

Learn how the nervous system works.

D4K: Nervous System

Video thumbnail: Science Trek D4K: Nutrition

Science Trek

D4K: Nutrition

Watch the “Nutrition Challenge” and learn more about eating right on this D4K.

D4K: Nutrition

Video thumbnail: Science Trek Muscles

Science Trek

Muscles

Your muscles give your body shape and movement. Find out more about the muscular system.

Muscles

Video thumbnail: Science Trek Blood

Science Trek

Blood

Blood keeps you alive in more ways than one. Find out how in the Science Trek show.

Blood

Video thumbnail: Science Trek Five Senses

Science Trek

Five Senses

You learn about the world through your five senses. Find out how in this Science Trek.

Five Senses

Video thumbnail: Science Trek Digestive System

Science Trek

Digestive System

It takes about 24 hours for food to make its way through your digestive system.

Digestive System

Video thumbnail: Science Trek Sleep

Science Trek

Sleep

What is sleep? Find out what happens when you go to bed and close your eyes.

Sleep

Video thumbnail: Science Trek The Heart: Blood Basics

Science Trek

The Heart: Blood Basics

Learn more about the blood your heart pumps.

The Heart: Blood Basics

Video thumbnail: Science Trek The Brain: Sleep: Why do we need it?

Science Trek

The Brain: Sleep: Why do we need it?

What is sleep? Find out what happens when you go to bed and close your eyes.

The Brain: Sleep: Why do we need it?

Video thumbnail: Science Trek Heredity: Who are you?

Science Trek

Heredity: Who are you?

Find out more about the science of genetics.

Heredity: Who are you?

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