It’s your kids’ favorite day of the year: Snow day! The day the weather is so bad outside, they get a freebie day off. However, snow days also mean your kids are going to be trapped inside for a whole day with nothing to do. Luckily, there’s plenty you can do with your kids when they have a day off to make it a fun and educational day.

Here is a list of 20 educational snow day crafts you can do together so you can make the most out of your free days off!

1. Grow Your Own Geodes

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Geodes are gorgeous and are a great way to teach children about geology. With this easy geode experiment, you and your kids can grow you own from scratch. Using eggshells as the base and some simple household items, you can make beautiful crystal geodes. It takes a couple of days for the results, but they’ll have a blast checking on the progress of their growing crystals over the next couple of days. Check out the instructions at Feels Like Home.

2. Pop Rocks Expander

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Teach your kids how about liquids and solids convert into gas with this fun experiment. Grab a two-liter of soda, a bag of pop rocks, and a balloon and watch the balloons blow up from the gas released by the mixture of the candy and soda. You can find the instructions at Steve Spangler Science. If you don’t have pop or pop rocks at hand, there’s some other fun science experiments you can do with other candies on the website.

3. Dancing Oobleck

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If your kids love music or are interested in electrical engineering, the dancing oobleck is a great experiment to do together. You make an ooey-gooey slime mixture that moves that is placed on a subwoofer or stereo system with bass. The mixture then dances to the tune of the song by reacting to the different sound waves. The gooeyness of the mix makes this an extra fun project for kids, just be careful when you place it on your stereo system so you don’t get any of the goo on your expensive equipment. Find the full instructions at Housing a Forest.

4. Rainbow In A Jar

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If your kids love rainbows, this is a super fun experiment to do. The best part is you probably have everything you need to make it in your kitchen. Layers of different liquids like water, oil, soap, and vinegar are stacked into a perfect rainbow inside of a jar. If you shake up the jar all the liquids will return to their original place because of the different densities. So it’s a great experiment to teach children about physics and density. Here are the full instructions for this colorful experiment at Sweet and Simple Things.

5. CD Case Bean Greenhouses

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Looking for a great way to up-cycle those old CD cases you have lying around? These CD Case Bean Greenhouses are a great way to repurpose them and teach your children about plant biology. Fill the bottom of the case with a little wet dirt and plant a bean. From there your children can watch the whole plant grow, including the roots, through the clear CD case. Once it’s a little bigger, you can transfer it to a pot and watch it grow all the way until it makes new beans! Get the instructions for this eco-friendly craft at Two Busy Brunettes.

6. Rain Cloud In A Jar

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A snow day is the perfect day to teach your children about clouds. This Rain Cloud in A Jar experiment shows them how rain clouds form and begin raining. Using just water, shaving cream, and a little food coloring, this great experiment can help them understand the meteorological processes that lead to them getting a snow day. Check out this instructional video on YouTube from KidsSpot on how to make this fun experiment.

7. Make Your Own Quicksand

You see it in the movies all the time. This jungle hazards is a kid’s favorite in their adventure stories. This easy science experiment you make with simple kitchen items can teach them how quicksand works. Grab their favorite doll or figurine and watch them sink! This project is a little messy, so you’ll want to lie down some newspaper or towels in the area for easy cleanup. Here are the full instructions at Science Kids.

8. Potato Battery

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If your kids are a little older, a potato battery is a wonderful experiment to do together. You can teach your kids about electricity, the basics of electrical engineering, and get them thinking about new, greener ways to meet our energy needs. PBS Kids has an excellent tutorial for a potato battery that uses basic household items and a small clock. If you don’t have a clock you can use any small electronic device. Since this craft is pretty advanced, you’ll definitely want to do it together.

9. Ice Fishing

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Since the snowplows will be out, spraying the icy streets with salt. A snow day is a great opportunity to teach your kids how salt melts ice. Using some rope, ice cubes, and a little salt, your kids can experience how salt melts ice first hand while fishing for ice cubes with the string. If you want a full explanation behind why this works so you can explain it to your kids as they fish, check out the instructions over at Science Kiddo.

10. Elephant Toothpaste

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Do your kids love chemistry? This is a super fun experiment you can do that has a big flashy impact. You just need a soda bottle and a few household items and you can watch the mixture explode out of the neck of the bottle.

The best part is the mixture is completely safe to touch, so your kids can go ahead and get their hands right in it. The downside to this very cool experiment is that it is really messy. So make sure that you lay out some towels, newspaper, or plastic sheets for easy cleanup. Get the instructions for Elephant Toothpaste at Preschool Powol Packets.

11. Invisible Ink

Invisible ink is a really fun project for kids because they love the idea of writing fun secrets to each other. It also teaches children about the process of oxidization, so it is as educational as it is fun. There are a couple of different methods you can use to make invisible ink depending on what you have around the house. Kidz World lays out all the different recipes for invisible ink, so you’ll be sure to find one for the ingredients you have in your kitchen.

12. Egg In A Bottle

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For a science experiment that doubles as a magic trick, you and your kids can do egg in a bottle together. This experiment uses air pressure to suck an egg right into a smaller opening of a bottle.

Your kids will be amazed when you show them how to pull of this seemingly impossible task. You’ll have to do most of this experiment because it involves heat, but your kids can help with the rest. Find the full instructions and an explanation about the science over at The Scientific Mom.

13. Make Your Own Abacus

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An abacus was the original calculator and can teach your kids how to do complex math equations. So if your kids love math and crafting, this is the perfect snow day activity. You’ll just need a frame, some straws, and paper and you can make an easy abacus that actually works.

You could also use strings and beads, whatever you have around the house. Let your kids go crazy with decorating, then once it’s built challenge them with math problems to teach them how to use their old school calculator. Handmade Kids Art has a great tutorial for an abacus you can find here.

13. Flag Art

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Is your kid a wannabe world traveler? This simple flag art project you can do together to teach them about the different countries of the world. Here’s a great resource that lists all the countries and flags of the world.

Then you can go through them one by one and learn about the unique history behind the design of each flag and then color them on paper. As you go, you can collect them in a book so you can quiz each other after you finish them. Here are some instructions from Mommy Labs on how to make these fun flag crafts.

14. Constellation Punch Cards

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Do your kids love space? Then this is the perfect craft for them. Constellation punch cards are super easy to make by simply punching out the patterns of constellations on a piece of cardstock.

They can then use these as constellation flash cards but holding them in front of a light projecting the constellation through the holes. For instructions for this easy astronomy craft, check out Country Eden.

15. Engineering Challenges

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If your kids are interested in building, architecture, or engineering, these five engineering challenges from Frugal Fun For Boys And Girls will keep them busy the entire snow day. Using Popsicle sticks, each engineering challenge teaches you children the different physics involved in building different kinds of structures.

You can build them one at a time, reusing the same sticks or glue the sticks together to make a whole city of popsicle structures. Once they understand the basics of structural engineering, they will be able to design and build their own structures.

16. Season Tree Project

20 Educational Snow Day Crafts To Keep Your Kids Entertained

A snow day is the perfect day to teach younger kids about the different seasons. With a simple book made of construction paper, they can demonstrate how the seasons impact the trees and nature. This adorable book can also be given as a gift. Here are the instructions over at Baker Ross for this seasonal tree project.

17. Paper Plate Clock

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If your kid is just learning how to tell time, this project is very easy. Taking two paper plates one with the minutes and one with the hours stacked on top of each other, your kids can learn how to read a manual clock.

This craft is so easy to make, even younger children can make the whole thing themselves. If you want to really dress it up you can add hands with a hole punch and a little string, so then you can quiz them. E Is For Explore has the instructions for this craft here.

18. Sentence Garland

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If your child needs to work on their English and grammar skills, sentence garlands are the perfect craft. Simply cut strips of paper and write nouns, adjectives, adverbs, and verbs on them. Then they can build a ringed garland making different sentences. This is a fun activity because it’s a bit like magnetic poetry or madlibs where the sentences can get a little silly. Here are the full instructions for Sentence Garland by The Owl Teacher.

19. Cell Coloring

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This is a great project for older kids to help them learn more about the makeup of cells. These free printable sheets from Home School Clip Art can teach your children the different parts of cells. They will color and label the cells to learn more about biological processes. The best part about this craft is there is no messy cleanup. So your kids can spend their whole snow day learning about cells and you won’t have to spend the whole night cleaning up after them

20. Pizza Fractions

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Fractions are one of the hardest math skills to learn. This free printable from Education.com can help. Using their favorite food, children can learn how to count and add fractions. Like the cell coloring, this project is mess-free so it’s ideal. Plus, it’s a fun game that your children can do together or on their own. Afterwards, maybe you can make it a theme day and order a pizza for the family!

So the next time your kids have a snow day, plan some of these fun snow day crafts. The best part about these is that even though they’ll be missing school because of the bad weather, they won’t be missing out on educational opportunities.