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in Science Experiments

Salt Crystal Feathers Science Experiment

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Try the salt crystal feathers science experiment! The salt crystal feathers experiment teaches how to make salt crystal feathers with science.

Of all the simple science experiments for kids we’ve made, we absolutely love this one using salt to cover feathers with crystals to do the salt crystal feathers science experiment.

So pretty for any time of year!

growing crystals science fair project

We’ve kind of gone a bit nuts here recently with salt crystals. We started with salt crystal witch tools for Halloween, then we made salt crystal leaves.

But when we saw these colorful feathers, we absolutely knew we had to cover them in salt crystals.

What we love the most about this salt crystals experiment is how easy it is to make.

We’ve tried other kinds of crystals, but they just haven’t worked as well or held up as well.

Epsom salt crystals look pretty, but they disintegrate quickly.

Borax crystals are fun, but they take a long time to grow!

If you're looking for simple science projects, the salt crystal feathers are so much fun! These homemade salt crystals are the perfect salt crystal project and you can learn how to make salt crystals fast for any salt crystals science project. #scienceprojects #science #scienceexperiments #stemactivities

We tried making sugar rock crystals a few weeks ago, and we just couldn’t get them to crystallize.

Our alternative is the salt crystal feather science experiment, and they make one of our favorite crystal science experiments!

As a bonus, salt is super cheap, making this one of the least expensive thanksgiving science projects you can make.

How to Make Salt Crystal Feathers

Follow this guide and learn how to make these beautiful salt crystal feathers during the fall or any time of year!

They are so pretty, kids will want to make them over and over!

And the science lessons that kids can learn are very educational as well, and kids will love returning to this science lesson over and over.

how to make salt crystal feathers

Related: Science experiments for kids (easy enough for anyone!)

What is the Science Behind Crystals?

If you're looking for simple science projects, the salt crystal feathers are so much fun! These homemade salt crystals are the perfect salt crystal project and you can learn how to make salt crystals fast for any salt crystals science project. #scienceprojects #science #scienceexperiments #stemactivities

The science of salt crsytals is fascinating!

Salt crystals form due to the high concentration of salt in the water. When the water evaporates, the salt has to go somewhere.

When the feather is placed in the water, the salt molecules (NA and CL) bond together around the feather. Over time, the salt crystals get bigger.

Salt crystals mimic the formation of other crystal structures, which all use ionic bonding (meaning they are inflexible) to form repeating patterns and structures.

Some crystal structures are soft, like salt and lime, while others are quite hard, like mineral-based gemstones!

Because of their ionic bonding patterns, salt crysals always have a square and rectagular shape.

Even when crushed, salt still retains a square shape!

When you look at salt crystals under a microscope, you can see the tiny square pieces and sharp edges of the crsytals.

Growing Crystals Science Fair Project Hypothesis

Of all the simple science projects we've made, we absolutely love this one using salt to cover feathers with crystals. So pretty for any time of year!

If you want to do the salt crystal feathers project as a science fair project, you need a hypothesis. You could compare the amount of salt to see which amount produces the biggest crystals.

In that case, the hypothesis would be that the more salt, the bigger the crystals.

Another variable to test is time in the salt water. Does leaving the feathers in the water longer lead to bigger crystal formation?

Another possible hypothesis could be that a salt crystal will always have a square shape, no matter what it is grown on.

Think about your own questions that you can answer with this salt crystal science experiment!

How Long Does It Take for Salt Crystals to Grow?

If you’re wondering how long does it take to grow salt crystals, the timeframe can vary.

But if you follow this salt crystal recipe, you’ll get large crystals forming within an hour!

Because of the supersaturated solution, these salt crystals grow much faster than in some recipes, and you’ll start seeing big results in less than 2 hours!

The salt crystals will form on the feathers and the crystals will be completely formed within 24 hours.

steam challenge cards

Simple science projects for the win! Wondering how do you grow salt crystals?

Keep reading to get the supplies, science explanation, and steps!

How to Make Crystals with Salt at Home

salt crysatal feathers

Follow along with these directions to make your very own salt crystal feathers!

What Do You Need to Make Salt Crystals

Of all the simple science projects we've made, we absolutely love this one using salt to cover feathers with crystals. So pretty for any time of year!

This post contains affiliate links for your convenience.

Shop this list of ingredients to learn how to make crystals with salt and water.

&

Colorful Goose Feathers 100pcs/pack/ (10pcs X10colors) (4--6 inch)Colorful Goose Feathers 100pcs/pack/ (10pcs X10colors) (4–6 inch)Morton Salt Regular Salt, 26 Oz, Pack of 2Morton Salt Regular Salt, 26 Oz, Pack of 2Ball Pint Mason Jars, 16 oz., Set of 12Ball Pint Mason Jars, 16 oz., Set of 12Home-X Wooden Clothespins. Set of 50.Home-X Wooden Clothespins. Set of 50.

    • Faux feathers
    • Salt (1 regular size box of salt makes enough for 3 feathers)
    • Mason jars
    • Clothespins

How to Make Big Salt Crystals

There are 2 ways to make big salt crystals.

First, the bigger the feathers, the bigger your salt crystals will be.

Also, the more supersaturated your solution, the bigger your salt crystals wil be.

Follow the directions outlined below and you’ll learn how to make big salt crystals!

How to Make Salt Crystals Step by Step

salt crystal science project

First, make your salt crystal water. We started by filling our mason jars with water.

We then poured that water into a pot and added our Salt. Boil the water until the salt dissolves.

Keep adding salt until the pot forms a layer of crystallized salt on top of the boiling water. It looks a bit like ice.

When you have that much salt in the water, you know it will work. In fact, it works quite quickly.

Of all the simple science projects we've made, we absolutely love this one using salt to cover feathers with crystals. So pretty for any time of year!

Pour the salty water into the mason jars. At this point, you’ll have a layer of salt in the bottom of the pot.

You can leave that out of your containers. They will crystallize just fine without it.

Grab the end of your feather with a clothespin so you can suspend it over the center of the jar.

Dip the feather into the jar and set it in a sunny window.

Of all the simple science projects we've made, we absolutely love this one using salt to cover feathers with crystals. So pretty for any time of year!

Your crystals will start to form in just a couple of hours.

However, for the level of crystal in our photos, we left our feathers in the water for about three days.

After three days, remove the feathers from the water. Let them dry overnight.

The next day, your feathers will be encrusted in square salt crystals.

Look at them with a magnifying glass for even more sciencey-fun.

steam challenge cards

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Filed Under: Science Experiments Tagged With: salt crystal, science fair, science in a jar

About Brenda Priddy

Brenda grew up thinking she hated science.

But when her 4-year- old daughter was more interested in reading science facts than fairy tales, Brenda realized she had to learn more about science to keep up with her daughter.

Through simple at-home science experiments, Brenda developed a passion for science and now acts as an advocate for STEM education for kids at her website STEAMsational.com.

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What is STEAM?

STEAM activities for kids promote the idea that science, technology, engineering, art, and math can all work together to help kids become critical thinkers, problem solvers, and innovators!

Join us on our journey to discover just how much fun science experiments can be.

What we do… 

STEAMsational offers STEM and science lesson plans and teaching resources to provide a firm STEM foundation for children in the classroom or home.

All you need to do is find your supplies, gather your scientists, and let the innovation unfold.

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