It’s time to put away the hearts and bring on the rainbows, gold, and leprechauns. We can’t wait to move on to celebrating St. Patrick’s Day with awesome science and STEM! My son’s obsession is to catch a leprechaun. They did leave him gold coins in his leprechaun trap last year. So of course, we also have a full round of St Patrick’s Day science experiments to take advantage of this fun day!

ST PATRICK’S DAY SCIENCE ACTIVITIES FOR KIDS

Awesome St Patricks Day Science Activities and STEM Ideas for Kids. Our St patricks Day Science experiments include chemistry and physics with slime making, chemical reactions, dissolving candy, exploring viscosity, growing crystals and so much more!

ST PATRICK’S DAY SCIENCE

When I think of St. Patrick’s Day so many different symbols come to mind. We think of rainbows, shamrocks, gold coins, leprechauns, and everything green! We have put together a huge list of all of these awesome things!

MAKE SURE TO SAVE OUR 17 DAY COUNTDOWN TO ST PATRICK’S DAY!

Plus we have a fun St. Patrick’s Day parade just a couple towns over, so it’s a pretty important day here complete with a road race.

Click here to get your FREE printable St Patrick’s Day STEM activities!

St Patricks Day STEM Challenge Cards

BONUS 1: BUILD A LEPRECHAUN TRAP

One of our favorite things to do for St. Patrick’s Day is to build a leprechaun trap. Just in case leprechauns really are real! This post also includes a printable design and planning sheet plus tons of ideas for creating your own leprechaun traps. A classic STEM activity for this holiday!

BONUS 2: MAKE ST PATRICK’S DAY SLIME

Around here, no holiday or special occasion is complete without a few theme slimes to try out. We have a few super simple St Patrick’s Day slime recipes that can’t be beat. Whether you are making a shamrock green slime, glittery gold slime or super fluffy rainbow slime!

Watch a video of our newest St Patrick’s Day slime being made right before you! Homemade slime is awesome chemistry for kids.

How To Make Slime for St Patricks Day activities with Kids

ST PATRICK’S DAY SCIENCE EXPERIMENTS

First, you can start by printing out these unique St. Patrick’s Day challenge cards that include all sorts of great science and STEM inspired projects, activities, and experiments.

You could place each one in a small black leprechaun’s pot! This is also a great idea for the older kids who need less supervision or assistance but like to have an idea to get started with instead.

St Patrick’s Day Magic Milk

This coloring-changing milk experiment is always a favorite and is so easy to change up for St Patrick’s Day science. You will need milk, dish soap, green food coloring, cotton swabs and a shamrock cookie cutter.

St Patricks Day Magic Milk

Fizzing Rainbow Pots

A fun baking soda and vinegar chemical reaction in a rainbow of colors.  You will need black pots, food coloring, baking soda, and vinegar.

fizzy pots for St patricks Day science and STEM

Fizzing Leprechaun Gold Hunt

Another fun baking soda experiment with a gold coin hunt included! We also made baking soda dough. Supplies needed are black pots, gold coins, baking soda, vinegar, and gold glitter.

St Patricks Day Baking Soda Science Gold Coins Activity

Grow Crystal Shamrocks

This St Patrick’s Day experiment is awesome chemistry for kids!  Watch borax crystals grow overnight on these pipe cleaner shamrocks and learn about saturated solutions and crystal formation.

Rainbow Crystals

Here is another fun crystal experiment for St Patrick’s Day. Make a simple rainbow from pipe cleaners and grow your own crystal rainbow.

rainbow for St Patrick's Day

Rainbow In A Jar

Test the density of water and make a rainbow with this experiment.  You will need sugar, water, food coloring, straw, and a tube or narrow vase.

Sugar water density science and rainbow science activity

Rainbow Prism

Rainbows are a big part of St Patrick’s Day. Here are several ways you can make a rainbow including with a prism as you learn about the refraction of light.

Color Changing Flower Experiment

Have you ever tried to change the color of a flower? Make your own green carnations for St Patrick’s Day science! You will need white carnations, green food coloring, vases or jars, and water.

Color Changing Flower Science Experiment for Kids Spring STEM

Rainbow Skittles Experiment 

Leprechauns love skittles!  This is an easy to set up science activity that gets really cool results!  You will need skittles, water, shallow pan or dish.

BONUS ACTIVITY: Conduct A Skittle Taste Test

Taste the rainbow of skittles colors. Do a blind taste test and use your senses to pick out the flavors. Can you tell which color is which? Only skittles needed!

Click below to get your quick and easy STEM challenges. 

A variety of new activities, which are engaging but not too long!

St Patricks Day STEM Challenge Cards

Polishing Coins {pennies}

Leprechauns love gold! Grab some dull coins and polish “gold” for the leprechaun as you learn about why pennies have a patina! You will need dull pennies, white vinegar, salt, bowl, and paper towels.

1

St Patrick’s Day Leprechaun Ice Melt

Go on a treasure hunt with this simple St Patrick’s Day ice melt activity. An easy way to explore solids and liquids with your preschoolers. You will need a container of water, and St Patrick’s Day theme items.

St Patricks Day Ice Melting Activity Coin Hunt

ENJOY FUN ST PATRICK’S DAY SCIENCE THIS SEASON!

We hope you have found a few new St Patrick’s Day science experiments to try with your kids!

Click on the images below for more fun St Patrick’s Day ideas for kids.