Looking for easy New Year’s Eve STEM activities for kids that feel festive but don’t require a science degree or a supply run at 9 p.m.? You’re in the right place. New Year’s Eve is the perfect time to sneak in simple science, engineering, and sensory play while kids are already excited about fireworks, countdowns, and staying up a little later than usual.
These New Year’s Eve STEM activities are low-prep, hands-on, and designed for toddlers, preschoolers, and early elementary kids. They encourage curiosity, problem-solving, cause-and-effect thinking, and fine motor skills—all while feeling like play. Think fizzy reactions, colorful experiments, building challenges, and just enough mess to make it fun without regretting it the next morning.
Below you’ll find quick activity ideas for easy setup plus a few deeper-dive activities with full materials lists and step-by-step instructions so you can pick what works best for your kids, your space, and your energy level.
Why You’ll Love These New Year’s Eve STEM Activities
These activities are:
- Easy to set up with supplies you already have
- Flexible for different ages and skill levels
- Mess-manageable (important on a holiday night)
- Educational without feeling like school
Most importantly, they give kids something meaningful to do while waiting for the countdown—without relying on screens or sugar overload.
Easy New Year’s Eve STEM Activities Kids Will Enjoy!
Fireworks in a Jar
This classic science activity feels especially magical on New Year’s Eve and takes just minutes to set up. Kids love watching the colors slowly sink and burst like fireworks while learning about oil, water, and density.
To do this activity, fill a clear jar with warm water and mix food coloring into oil in a separate cup. Pour the oil mixture into the jar and watch as the color slowly falls and “explodes” through the water like fireworks.
Fizzy New Year’s Eve Sensory Bin
A fizzy sensory bin is always a hit, and adding a New Year’s Eve theme makes it even more exciting. This activity combines sensory play with a simple chemical reaction that kids can control and explore.
Set up a shallow bin with baking soda, scoops, cups, and eye droppers filled with vinegar tinted with food coloring. Kids squeeze, pour, and watch the fizzing reaction while experimenting with color mixing and cause-and-effect.
Salt Painted Fireworks
Salt painting is an easy way to combine art and science, and it works beautifully for New Year’s Eve fireworks. Kids get instant results, which makes this one especially satisfying.
Draw fireworks designs with glue on thick paper, sprinkle with salt, and then drip watercolor paint onto the salt using a dropper or brush. The paint spreads through the salt, creating firework-like bursts that feel almost alive.
New Year’s Eve Paper Towel Surprise
This activity feels like magic and keeps kids guessing, which is perfect for a night all about surprises. It’s also a great way to introduce concepts like absorption and capillary action.
Write numbers, shapes, or simple messages on paper towels using washable markers, then fold or roll them up. When kids dip the paper towels into water, the hidden designs slowly appear.
Magic Milk Experiment
The magic milk experiment never gets old and feels extra special when framed as a New Year’s Eve science trick. It’s simple, visual, and packed with learning.
Pour milk into a shallow dish, add drops of food coloring, and then touch the surface with a cotton swab dipped in dish soap. The colors instantly swirl and move as kids observe how soap breaks down fat in the milk.
LEGO Ball Drop
A LEGO ball drop is a fantastic New Year’s Eve engineering challenge that keeps kids building, testing, and rebuilding. It also pairs perfectly with countdowns and timing experiments.
Kids design towers or ramps using LEGO bricks to drop balls from different heights. Encourage them to test which design makes the ball fall fastest or land in a target container.
New Year’s Eve Slime
Materials
- Clear or white school glue
- Baking soda
- Contact lens solution (with boric acid)
- Food coloring or glitter
- Bowl and spoon
How to Make It
Pour glue into a bowl and mix in food coloring or glitter. Stir in baking soda, then slowly add contact lens solution while mixing until slime forms. Knead until smooth and stretchy.
This activity lets kids explore texture, elasticity, and chemical reactions while making something they can play with long after midnight.
DIY Confetti Poppers
Materials
- Empty toilet paper rolls
- Tissue paper
- Rubber bands
- Confetti or paper scraps
- Balloon (optional alternative method)
How to Make Them
Cover one end of a toilet paper roll with tissue paper and secure with a rubber band. Fill the tube with confetti, then cover the other end or leave it open. Kids can gently shake or squeeze to release confetti.
This activity introduces air pressure and force while letting kids celebrate the New Year in a kid-friendly way.
Magnetic Tile Ball Drop
Materials
- Magnetic tiles
- Small balls or pom poms
- Flat surface or table
How to Build It
Use magnetic tiles to build tall towers, zig-zag ramps, or enclosed chutes. Drop balls from the top and adjust the structure to change speed and direction.
This open-ended activity encourages problem-solving, spatial awareness, and early engineering skills while keeping kids fully engaged.
Whether you try one activity or turn the night into a full STEM celebration, these easy New Year’s Eve STEM activities for kids are a fun way to end the year with curiosity, creativity, and hands-on learning.
Play2Learn Toddler & Preschool Programs for Curious Toddlers
There is no limit to your toddler’s energy and curiosity. That energy and curiosity although a joy can be challenging at times. Their interest in just about everything around them is what makes them great learners. One and two year olds can soak up so much just from their senses!
But as a teacher or parent that thirst for learning can be exhausting. That is why I created this toddler and preschooler program. To help you get the most out of this time with your curious toddler without having to come up with creative ways to play and interact with them.
Play2Learn for Toddlers includes 20 Units for toddlers. Each 2-week toddler unit has 20 super easy to set up and engaging activities for toddlers 18 months to 3 years.
Play2Learn Preschool which includes 20 Units for preschoolers. Each 2-week preschoolers unit has 20 unique and easy to set up and engaging activities for preschoolers 3 years to 5 years. That’s over 800 learning activities for your toddler and preschooler at your fingertips! So many ideas you and your child will never be bored again!
These toddler and preschool lesson plans and activities will definitely keep you and your toddler and preschooler busy playing and learning!
Click here for more information: Play2Learn
Book: Exciting Sensory Bins for Curious Kids
Did you know I wrote a book of sensory bins? Click here for more information Exciting Sensory Bin for Curious Kids. Or grab your copy at Amazon.
Boring afternoons are made exciting with awesome animal-based bins, like Salty Shark Bay or Yarn Farm. Pretend play bins like Birthday Cake Sensory Play or Bubble Tea Party encourage creativity and imagination. And your kids will have so much fun they won’t even know they’re getting smarter with STEAM (science, technology, engineering, art and math) activities like Sink or Float Soup, Magnetic Letter Hunt or Ice Cream Scoop and Count.
Designed for toddlers 18 months and up.
Book: Super STEAM Activity Book for Kids
Learning all about science, technology, engineering, art, and math sets kids up for scholastic success―and it can be so much fun! Watch kids enjoy building STEAM skills as they color friendly fish, help water find its way to tree roots, solve math problems with mazes, and more.
Find out more and grab your copy here.
Designed for preschoolers 3 years old and up.
Book: Big Book of Riddles for Kids
Riddle me this: What’s an exciting way to practice critical thinking while having a blast? The Big Riddle Book for Kids, of course! From hilarious puns to tough brain teasers, kids can build problem-solving skills with hundreds of riddles tha. t show them how to think outside the box.
- 350 riddles for kids—Have hours of fun with riddles, puns and jokes, and math and logic puzzles that’ll get their wheels turning!
- Level up their skills—Riddles get trickier as kids progress through the book, challenging them as they get better at solving puzzles!
- Double-check their work—Kids can check their answers in the back of the book with a handy answer key.
Help children expand their minds while having fun with this puzzle book for kids!
Designed for kids ages 6 years old and up.
TV Show: Curious Crafting
I’m so excited to share my crafting TV show Curious Crafting which launched in July 2022 on TVOkids and TVOkids YouTube! Season 2 aired in August 2023! My show was also nominated in 2023 for Best Live Action Preschool Series by the Youth Media Alliance Awards of Excellence.
Curious Crafting Season 1 is also now airing in Australia on ABC! Watch it here!
Set in the ultimate crafting space, Curious Crafting is a short form pre-school age series about the joy of making crafts. I lead a rotating cast of adorable little preschoolers (including my own) making magic out of common household objects.
In each episode we transform recycled items into magical crafts like a milk carton school bus, paper bag puppet or cotton pad turtle. The crafters learn and laugh their way through each activity while demonstrating what their young imaginations can create.
Curious Crafting shares the adventure and joy of making art with takeaway lessons for creating crafts at home.
This show designed for toddlers and preschoolers 2.5 years old and up.
