The world of lime

Lime has shaped how people build, farm and live for thousands of years. It is in your water, your windows, your food and the road outside. It is one of the world's most essential, but least understood materials. See how Lime is used around the world every day.

Lime in daily life

You have already used lime today, several times, without knowing it.
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What is glass made of?

Your window, your bottles, and every solar panel.
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Why are the Egyptian pyramids still standing?

Two and a half million blocks of limestone.
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How is sugar made white?

You use this mineral every day without knowing it.
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Why is limestone inside your pipes and paint?

The invisible mineral inside your home.
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What is cement made of?
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What is cement made of?

Every building you have been inside began as rock.
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Why is there limestone in your toothpaste?
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Why is there limestone in your toothpaste?

It is the part that does the polishing.
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Why do old books turn yellow?
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Why do old books turn yellow?

The paper was destroying itself from the day it was made.
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Why do antacids contain chalk?
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Why do antacids contain chalk?

The same reaction that sweetens sour soil.
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What is whitewash made of?
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What is whitewash made of?

Painted on as lime, it turns back into stone.
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The material itself

One rock, three materials. This is where the rest of the site starts.
What is limestone made of?
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What is limestone made of?

Most of it was alive once.
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What happens when you burn limestone?
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What happens when you burn limestone?

Add water to what is left, and it boils.
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What is the difference between limestone and marble?
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What is the difference between limestone and marble?

Squeeze limestone hard enough and it changes.
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Why does limestone fizz in vinegar?
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Why does limestone fizz in vinegar?

The test is a single drop of vinegar.
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Lime in industry

Behind steel, clean water and safe smoke, there is usually a lime plant.
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Why does every tonne of steel need lime?

The hidden ingredient in every tonne of steel.
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What do eggshells and limestone have in common?

A hen builds one every day, out of limestone.
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What cleans your drinking water?

Treated long before it reaches your tap.
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Can soil become sick?

A third of India's farmland has gone sour.
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What cleans the smoke from a power plant?

Cleaning the air before it reaches the sky.
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