Looking for some easy experiments to do with the kids? We’ve got you covered with all of our favourite, easy science experiments for kids. The best part about all of these ideas is that they may be simple, but the lessons are powerful! Plus they can be adapted for a wide variety of ages and learning environments.
100+ Genius Easy Science Experiments for Kids
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Fun Science Experiments
First let’s kick things off with a list of easy science experiments for kids that we have done many times over and are a favourite of STEAM Powered Family readers around the world. Almost all of these projects use common household items and are tested by kids and teachers! We have science experiments for all ages, from preschool to middle school, even adults love to do these!
Baking Soda and Vinegar Experiments
It is incredible the number of cool science experiments you can create from this one simple chemical reaction between Baking Soda and Vinegar. This endothermic reaction, is a classic acid and base chemical reaction.
Here is the chemical formula of this reaction
C2H4O2 + NaHCO3 -> NaC2H3O2 + H2O + CO2
vinegar + sodium bicarbonate -> sodium acetate + water + carbon dioxide
Some of our favourite baking soda and vinegar science activities of all time include Bottle Rockets, Fireworks Experiment, Baking Soda Oobleck, and Hatching Dinosaur Eggs. No matter which one you pick, you must try at least one vinegar and baking soda experiment when little scientists are first learning about chemistry.
Balloon Races – Physics Science Experiment
This fast paced, exciting science experiment explores the principles of physics and Newton’s Laws of Motion. It is so simple, kids won’t believe how much they are learning while having fun! Balloon Races make a fantastic activity for the classroom, camp, after school program or at home when the kids need to burn off some energy while learning!
Build a Compass – A Magnetism Science Experiment
Did you know it is actually very easy to build a compass? All you need is a bowl of water, a needle and a cork! Have your children explore the same magnetic forces that inspired Einstein as a child in this fun science experiment.
Lollipop Layers Density Experiment
Density is such a fun phenomenon to explore, and in this version of a density experiment we are using candy! Lollipop layers is so simple, all you need is a bunch of lollipops or hard candies, water, and a patient hand. The result… GORGEOUS!
Greenhouse Effect Science Experiment
Climate change experiments are so important for helping foster a deep understanding in our students. In this Greenhouse Effect Science Experiment we learn how gas are changing the atmosphere and affecting global temperatures.
A classic science project for kids, making a volcano can be as simple or as complex as you want to make it. The goal of the exercise, a big, bubbly reaction that is sure to WOW students. Here are some of our favourite Volcano Experiments we have done.
Have you ever made a Lava Lamp at home? This sensory science experiment is mesmerizing! Watching those bubbles bounce and dance and play is sure to capture students of all ages. Best of all, we have 5 different ways you can make a Lava Lamp (including the old favourite with alka seltzer), so no matter what supplies you have available, we have a Lava Lamp experiment you can do.
Make Milk Plastic
While teaching elementary science I was always on the hunt for cool science experiments that would impress my kids and really stretch their interests and foster their curiosity. One of the biggest hits of all time was a surprisingly simple experiment, that we never really considered as possible… making plastics. Specifically making bioplastics out of milk. With this concept you can create a lesson that is a powerful way to explore polymers with kids. This easy science experiment is a sure fire hit with students and gives them a wonderful keepsake of their studies.
Bouncy Naked Egg in Vinegar Experiment
Have you ever tried to shell a raw egg? Impossible you say? Challenge your hypothesis in this egg in vinegar science experiment! Not only will you remove the shell from a raw egg, but the result is a bouncy, rubbery, raw egg. An incredibly simple science experiment, it can also be used to teach higher level concepts in osmosis and biology for students learning about the parts of the cell.
Making Water Rise Experiment Magic
When we did this water experiment the kids jaws hit the floor! It is so simple, but the results shock the kids. This is one very easy science experiment that is also incredibly memorable. It teaches the science of creating a vacuum in a very simple approach with just a jar, water and a candle. Learn how to make water rise and wow your students!
You have probably seen the Elephant Toothpaste Science Experiment done on TV or at the Science Center where they create a massive gusher that goes many feet into the air, but did you know there is a very simple and easy way you can do this experiment yourself with items you already have available? This classic science experiment is one every student should experience.
If you live where it gets well below freezing, one of our favourite winter science experiments is to freeze bubbles. There are some specific science principles you need to understand to ensure this experiment is a beautiful success!
As a crystal lover and passionate family of rock hounds, the idea of growing crystals is something that we love! Over the years we have found all the ways to simplify and perfect the process so you can easily grow gorgeous crystals and learn the science behind crystallization. We have made crystals from borax, alum and sugar. We even have edible crystals… yum!!
Explore Surface Tension with Glitter (or Pepper) and Soap
Surface tension is the focus of this simple science experiment that provides a powerful demonstration of the effect soap has on surface tension. Do this easy experiment, all you need is a plate, water, glitter or pepper and dish soap. Such an easy science experiment for kids!
Bottle Crush – Simple Heat Transfer Experiment
Got a soda pop bottle, some hot water and a cold winter day (or a bucket of ice)? Then you have all the makings of a cool science experiment! This this Bottle Crush science experiment, kids feel like all powerful magicians as the bottles crush in front of their eyes without touching it.
pH Testing Lab
Have you ever done a pH lab experiment? In this simple version, you can use items from the kitchen to create a science lab that allows students to explore pH and learn more about acids and bases.
Gummy Mummies – Gummy Bear Mummification Experiment
Gummy Bear Science Experiments are always a hit with kids and in this easy science experiment we explore how the mummification process works. Add an extra fun comparison by also placing some of the gummy bears in liquid.
Want a beautiful rainbow science experiment that is soooo easy it all happens without you even needing to do anything? Simply set it up, walk away, and come back to a beautiful rainbow of colours. In the Walking Rainbow Science Experiment kids learn about capillary action and color mixing. All you need is jars, paper towels, water and food coloring.
On a rainy day, why not make Rainbow Rain in this simple science experiment for kids. The results are beautiful and will brighten a dreary day. All you need is water, shaving cream and a few drops of food colouring.
It doesn’t get any easier than the simple Skittles Experiment. All you need is a plate, some Skittles and water. Soon you will have a spectacular science experiment the kids will beg to do again and again.
It’s been all the rage for a few years, and whether you love it or hate it, making slime can actually be a fantastic science experiment for kids.
Ready to do one of the most simple science experiments, but also the most fun? It’s time to make non-Newtonian Fluids! Known as Oobleck, it turns sold under pressure and liquifies when you remove pressure. And it will keep kids learning hands on and exploring for hours! The best part is all the different science experiments you can do with Oobleck.
Now when you think of Moon Dough, you don’t immediately think of easy science experiments for kids, but that’s because you have never made Moon Dough the way we make Moon Dough! In our recipes we learn about emulsifiers, glow in the dark science, chemical reactions, heat transfer, all while having so much fun exploring science and sensory play with kids of all ages.
Making playdough with your kids is a great way to teach them about mixtures, solutions, substances, and chemical changes. It is also teaches about the importance of formulas and the role each ingredient plays in creating one of the all time most popular sensory play items, playdough!
Magic Milk Experiment
Ready for some serious wow factor in a really easy science experiment? Magic Milk is a classic experiment that always mesmerizes kids. Over the years we have used it to learn about surface tension, space, pollution on Earth Day, and so much more. All you need is milk, dish soap and food colouring… and watch the magic colour explosion happen!
Simple Snow and Ice Experiment
Is it winter where you live? This is a fantastic, very simple and easy experiment to do with young students. All you need is some jars, snow, ice cubes and water… and watch the melting magic!
Heat Transfer Experiment – Slurpee Making
Kids love this simple slurpee science experiment where they get a cold, sweet treat at the end in the form of a homemade slurpee! Using the science of heat transfer, kids will make their very own slurpee out of juice. A great experiment for learning about temperature, heat and heat transfer.
Flying Ghosts Tea Bag Experiment
Obviously this easy science experiment is perfect for Halloween, but don’t let that stop you from doing it at any time during the year. The results of the flying tea bag experiment are always a hit with kids and all you need is fire and a tea bag to set flight to curiosity!
Inspire your little ones to learn more about how salt and water react in this fun ice fishing science experiment.
Water and Oil Experiment
Demonstrate how oil and water don’t mix in this colourful oil and water experiment. All you need is a few simple ingredients: water, oil and food colouring. When it comes to easy science experiments for kids, it doesn’t get easier than this!
Magnet Science – Harry Potter Inspired Wingardium Leviosa
Use the magic of science to wow students, or teach students this experiment so they can wow their friends with their new found magical abilities. You can also use this science to make ghosts fly! Who knew magnet science was so cool?
Marshmallows are the secret to easy science experiments that you never knew existed in your pantry! Learn how to teach concepts around heat, molecules, expansion and more in this marshmallow science experiment.
Kids wondering why the sky changes colour during sunrise and sunsets? Or the always famous, why is the sky blue, question? Explore the science of the sky colours in this easy experiment.
Easy STEM Challenges
Why not combine Science with some Technology, Engineering and Math in these easy STEM Projects for kids.
Build a Popsicle Stick Catapult
One of the original STEM projects kids have been building for generations is the simple catapult. There are lots of different ways you can build a catapult, but here we are making the always easy and popular Popsicle Stick Catapult.
Build a Water Clock
This easy STEM project has some significant historical context that your history loving students will go wild over. Plus building a water clock is surprisingly easy but packs a powerful learning punch.
Make a Glow Salt Circuit
Before you start to worry, building a circuit doesn’t have to be difficult. In fact, once your students master the basics of electricity and circuits, they will want to start adding circuits to everything. To get started, one of the most simple circuit projects you can make is our Glow Salt Circuit. Don’t worry, we provide all the detailed instructions to ensure your project is a hit.
Build a Battery
Another great way to explore electricity science is to build a simple battery out of food. We have built Lemon Batteries, Pumpkin Batteries and even Potato Batteries. Kids love capturing the energy in our foods and using it to light up!
Build a Bridge
A bridge building challenge is a great way to challenge a class either in school, at camp or in an after school program. Kids get to let their innovation, creativity, and understanding of science and engineering go wild as they build their creations. Then test them out against other designs to see which concepts come out on top.
Rube Goldberg Machine
Building simple machines is an incredible STEM project for all ages. With a Rube Goldberg Machine you are linking simple machines into a chain reaction to achieve an end goal. The best part about a Rube Goldberg Machine project is that it challenges students to work together and apply critical thinking and problem skills as they develop their STEM literacy. Check out the Rube Goldberg Machine we built as a Leprechaun Trap.
Build a Catapult Cannon
Catapults may be fun, but as kids get older, they want bigger challenges, bigger launches and bigger fun with their learning. Enter the Catapult Cannon, a Catapult design that launches harder and farther than your regular catapults, and challenges students to apply more advanced engineering and physics concepts.
Build a Confetti Cannon or Seed Bomb Launcher
For a smaller scale challenge with mini cannons, try making this Confetti Cannon, which includes two different designs, one for little learners and one more complex design for older kids. Plus you can use a similar design concept to make a Seed Bomb Launcher for homemade Seed Bombs.
Tower Construction Challenge
A very easy STEM Project is to challenge kids to build a tower. Now you can do this with blocks or LEGO, but up the challenge by having kids build with candy, marshmallows, paper, pasta or even frozen bubbles. Add a time limit to turn this into a one minute STEM challenge.
Make a Thaumatrope
Optical illusions are always a fun experiment for kids. For a quick and easy optical illusion for kids, try building Thaumatropes. It is so easy, especially with our ideas and templates.
Build a Balloon Car
Biology Science Build a Heart Model or a Skeleton Hand
Turn a boring Biology lesson into a fun science class with a STEM project inspired by the human body.
Science Experiments and STEM Projects for the Holidays
Need something specific to celebrate the seasons or holidays? Check out all of these resources featuring the best in easy science experiments for kids with a special theme!