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🍎 The Digestive System

Follow a bite of food on its amazing journey from your mouth to your stomach and through your intestines, where your body grabs the goodness it needs.

lessons

~15 min

to learn

🔬 Science

subject

Ages 6–12

level

Start the course →

What you’ll learn

The Journey BeginsDescribe how digestion begins in the mouth and how the oesophagus moves food to the stomach.The digestive system is a long tube that processes your food. Digestion begins in the mouth, where teeth chew and saliva softens the food. When you swallow, the muscular oesophagus squeezes the food down to the stomach.
In the StomachExplain that the stomach churns food with acid and that the small intestine absorbs nutrients into the blood.The stomach is a stretchy bag that churns food and mixes it with strong juices, including acid, turning it into a thick soup. The food then moves into the small intestine, a long coiled tube where nutrients pass through the walls into the blood to feed the body.
The Final StretchExplain the role of the large intestine and recall the full order of the digestive journey.Whatever the body cannot use passes into the large intestine, which soaks up leftover water and forms the waste. Food travels in order — mouth, oesophagus, stomach, small intestine, large intestine — and digestion turns food into the nutrients that give us energy and help us grow.

Questions this course answers

Where does digestion begin?

Digestion begins in the mouth, where teeth chew food and saliva makes it soft.

What is the job of the oesophagus?

The oesophagus is a muscular tube that squeezes swallowed food down from the mouth to the stomach.

What does the stomach do to food?

The stomach is a stretchy bag that churns food and mixes it with strong juices until it becomes a thick soup.

Which organ absorbs the nutrients from food into your blood?

The small intestine is where nutrients pass through the walls into the blood to feed your whole body.

What is the main job of the large intestine?

The large intestine soaks up leftover water and packs the rest into waste that later leaves the body.

Which shows the correct order food travels?

Food travels from the mouth, down the oesophagus, into the stomach, then through the small and large intestines.

Grounded in trusted sources

KidsHealth
BBC Bitesize
Britannica Kids
National Geographic Kids

Every Wunder lesson is built from real, reputable sources — never invented.

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