The botanical periodic table

Walk into the dining room at REAL School, and you will find a periodic table where every element has a plant partner.

Hydrogen pairs with cucumber. Carbon with brown rice. Gold with corn. 118 elements, 118 plants - arranged in the same grid that has hung in chemistry classrooms for 150 years, but reimagined as a story about food, nature, and the elements of the universe we are all made of.

Coming back from spring break to find the botanical periodic table installed on the dining room's wall, the students were fascinated by the facts and tried to spot the plant they drew.

Where the idea came from

The project grew out of a simple question: how do you create a beautiful and meaningful display for a plant-based school's dining room?

The solution was a botanical periodic table - pairing each element with a plant that has a genuine scientific relationship with it.

The science behind the stories

The plant pairings are not decorative. Each one reflects a genuine chemical relationship. Kale is paired with calcium because it contains 150 mg of bioavailable calcium per 100 g, absorbed more efficiently than milk. Garlic is paired with sulfur because crushing a clove triggers an enzyme reaction that produces allicin, the sulfur compound responsible for its smell and its antimicrobial power. Spinach is paired with oxygen because its dense chlorophyll content makes it one of the most productive photosynthesisers in a kitchen garden, pulling carbon dioxide from the air and releasing the oxygen we breathe.

The deeper principle running through all of it is bio-accumulation: the way plants act as miners, drawing specific elements from soil, water, and atmosphere and concentrating them into forms the human body can use.

When we eat these plants, we are - quite literally - eating stardust. Every element heavier than hydrogen was forged inside a star. The iron in your sesame seeds, the iodine in your kelp, the phosphorus in your quinoa: all of it travelled from the cores of dying stars, through the soil and roots of a plant, to your plate.

A living display

The illustrations on the table were made by the children themselves. Each plant card carries a child's drawing alongside the element symbol, atomic number, plant title, and two facts - one about the plant, one about the element - written to be easily understood by primary-school-age children.

The display is designed to be used during lunch. Everyone is invited to find the element partner for whatever vegetable is on their plate that day, follow the colour-coding to discover which chemical family their food belongs to, and seek out the bottom rows - the rare earth and synthetic elements, represented by seaweeds and ancient plant species that seem almost as improbable as the elements themselves.

Why it matters

Every meal is an opportunity to ask - Where did this come from? What is it made of? What does it do inside me? The botanical periodic table makes these questions visible.

It is an invitation to ask questions, make connections, and find wonder in the food on your plate!