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Book 27, Question 58 · Video

Why do some salts look like flakes or pyramids?

Video · 1:47 · Crafty Clover explains, from A Million Whys Book 27

When salt crystallizes from a quickly evaporating pool of brine, crystals start on the surface and grow outward into hollow pyramids that float. They are called flake salt and are light and crunchy. Table salt grows in tanks and has dense little cubes. The shape depends on how and where the crystals grow. Cooks like flakes for a crunchy finish on food.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. Why do some salts look like flakes or pyramids?

The Big Idea

Some salt looks like tiny cubes. Other salt looks like flakes or pyramids! Why the difference?

Flake Salt

Step one: Flake Salt. When salt crystallizes from a quickly evaporating pool of brine, crystals start on the surface. They grow outward into hollow pyramids that float, called flake salt.

Table Salt

Step two: Table Salt. Table salt grows in tanks and has dense little cubes. The shape depends on how and where the crystals grow.

In the Kitchen

Step three: In the Kitchen. Flake salt is light and crunchy. Cooks like flakes for a crunchy finish on food.

A Closer Look

Let's take a closer look! Flakes are hollow. Cubes are dense. Brine makes flakes. Tanks make cubes.

Quick Facts

Quick facts! Some pyramid-shaped flakes are made in the same way as hopper crystals. Flakes float on brine. Table salt is cubes. Cooks love flakes.

Think Like a Scientist

Now, think like a scientist! Put some table salt on dark paper. Put some flake salt beside it. Look at both with a magnifier. Draw a grain of each. How are they different?

Outro

Salt can be cubes or flakes depending on how it grows. Flake salt forms hollow floating pyramids on evaporating brine, while table salt grows into dense cubes in tanks. Shape depends on how salt grows. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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