Photosynthesis Story for Kids: How a Leaf Makes Food From Sunlight

Photosynthesis is how green plants make their own food. A leaf uses the energy of sunlight to turn water (taken up by the roots) and carbon dioxide (taken in from the air) into a sugar the plant uses for food — and it gives out oxygen, the gas we breathe. The green pigment that catches the sunlight is called chlorophyll. The story below teaches it in about five minutes, followed by facts, words, questions and an activity.

The story: Leafy's Kitchen in the Sun

A story to read aloud, for ages 7 to 11.

1. Meera had a little pot of tulsi on her window ledge. Every morning she gave it water and every morning she asked it the same question: "Where does your food come from? You never eat anything!" One morning, the biggest leaf answered. "I'm Leafy," it said. "Come and see my kitchen."

2. Meera looked closely. "Your kitchen is a leaf?" Leafy laughed. "Every leaf is a tiny kitchen. And like any kitchen, I need ingredients." Down in the pot, the roots were busy drinking up the water Meera had poured. The water travelled up the stem, like juice through a straw, all the way to Leafy.

3. "Ingredient number two is in the air," said Leafy. On the underside of the leaf were thousands of tiny holes, far too small to see without a microscope. "These are my stomata. They let in a gas called carbon dioxide — the same gas you breathe out." Meera breathed on the leaf. "Thank you!" said Leafy.

4. "Now I need power to cook," said Leafy, turning towards the window. "Sunlight!" Inside the leaf, a green colouring called chlorophyll caught the sunlight like a solar panel. Using that energy, Leafy mixed the water and the carbon dioxide together and — like magic, but really science — made a kind of sugar called glucose. That sugar was the plant's food.

5. "Some of my food I use straight away to grow," Leafy explained. "Some I store, in my stem and roots and seeds." Then a little puff came out of the stomata. "And that's the bit I don't need: oxygen. I give it back to the air — for you!" Meera took a deep breath. She was breathing something her tulsi had made.

6. "So you don't eat soil?" Meera asked. "No," said Leafy. "From the soil I take water and a few minerals that keep me healthy. But my food I cook myself, right here, in the sunshine." Meera smiled and moved the pot to the sunniest spot on the ledge. Leafy's kitchen was open for business.

What the story teaches

Ingredient or result	Where it comes from or goes	In the story
Water	Taken up by the roots and carried up the stem to the leaves.	Meera waters the pot; water travels up "like juice through a straw".
Carbon dioxide	A gas in the air, taken in through tiny holes in the leaf called stomata.	Meera breathes on the leaf.
Sunlight	Captured by chlorophyll, the green pigment in leaves. It gives the energy.	Leafy turns to the window.
Glucose (sugar)	The food the plant makes. Used to grow or stored in stems, roots and seeds.	Leafy's "cooking".
Oxygen	Given out into the air. Animals and people breathe it.	The little puff Meera breathes in.

In one line: water + carbon dioxide + sunlight energy → glucose (food) + oxygen.

A common mix-up to correct: plants do not get their food from the soil. The soil gives water and minerals; the food itself is made in the leaves. A second one for older children: plants also use some oxygen (they respire, like us, all day and night), but in daylight they make much more oxygen than they use.

Words to learn

• Photosynthesis — the way green plants make food using sunlight. "Photo" means light; "synthesis" means putting together.
• Chlorophyll — the green pigment in leaves that captures sunlight.
• Stomata — tiny openings, mostly on the underside of leaves, that let gases in and out.
• Carbon dioxide — a gas in the air that plants use and animals breathe out.
• Glucose — the simple sugar a plant makes as food.
• Oxygen — the gas plants give out and we breathe in.

Questions to ask after reading

1. What three things does Leafy need to make food? Water, carbon dioxide and sunlight.
2. How does water get from the pot to the leaf? The roots take it up and it travels up the stem.
3. What is chlorophyll's job? It catches sunlight and uses its energy to make food.
4. What does the plant give out that we need? Oxygen.
5. Meera thought plants eat soil. Was she right? No. Plants take water and minerals from the soil, but make their food in their leaves.

A simple activity: the light test

You need: two small, similar potted plants (or two cuttings in water), and a dark cupboard.

1. Put one plant in a sunny spot and the other in a dark cupboard. Water both the same.
2. Look at them every day for a week. Draw what you see.
3. The plant in the dark turns pale and weak, and stretches as if searching for light. The plant in the sun stays green.

What's happening: without light, the plant can't photosynthesise, so it can't make its food. (Put the cupboard plant back in the sun afterwards — it will usually recover.)

Where this fits in school

Children usually meet the idea that "leaves make food for the plant" around ages 8 to 10, and learn the word photosynthesis with its ingredients a little later, often around ages 10 to 12 — roughly Classes 4 to 7 in Indian schools and Grades 3 to 6 elsewhere. Check your school's syllabus for the exact class and chapter.

Make this story about your child or class

With ZunoTales' Learning Adventure, you type a topic such as "photosynthesis", choose the class level, and get an illustrated story read aloud, with your child — or your class — as the hero, plus comprehension questions and vocabulary. It is free to start, with three stories a month and no credit card. Teachers can see how it maps to their board on our CBSE curriculum page and for educators page.

More story lessons: the water cycle, the life cycle of a butterfly, the digestive system and states of matter.

FAQ: How do you explain photosynthesis to a child?

Say that every leaf is a tiny kitchen. It takes in water through the roots and carbon dioxide from the air, uses sunlight as the power to cook, and makes sugar as food for the plant. The leftover it gives back to the air is oxygen — the gas we breathe. A talking leaf, like Leafy in the story above, makes the steps easy to remember.

FAQ: What are the ingredients of photosynthesis?

Water, carbon dioxide and sunlight, with chlorophyll in the leaf capturing the light. The products are glucose (the plant's food) and oxygen. In short: water + carbon dioxide + light energy → glucose + oxygen.

FAQ: Do plants get their food from the soil?

No — this is the most common misconception about plants. Soil provides water and minerals, but the plant makes its own food, a sugar called glucose, in its leaves through photosynthesis.

FAQ: What age do children learn photosynthesis?

The simple idea that leaves make food appears around ages 8 to 10. The word photosynthesis, with its ingredients and products, is usually taught from about 10 to 12. The story above works for both: younger children follow Leafy's kitchen, older ones can name every ingredient.