Koala Crate is our line of science kits for kids ages 3-4. Introducing science and math to preschoolers may seem early, but in fact, it is crucial to building a strong foundation in STEM — science, technology, engineering, and math. Our crates introduce young learners to concepts like physics — through the science of rainbows — and biology — through learning about animals like reptiles and marine life.
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Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled “hard” are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

Scientific Explorer's Mind Blowing Science Kit includes almost everything you need to set up exciting, colorful experiments with your young scientist. Included in this dynamic kit are the following components: red cabbage juice powder, citric acid, color tablets, polyacrylamide crystals, a pipette, small and medium scoops, and three plastic cups. Only basic supplies are required but not included, such as water, towels, a plate or tray to catch spills, and a stirring spoon. Although none of the experiments included in this kit are especially messy, each one should be done on a flat surface that can be easily wiped clean in case of spills.
Learn interesting science and technology facts by experimenting with different materials that react in surprising ways. You'll find a lot of experiments can be done using simple ingredients found around your house (with adult supervision of course). Basic materials can help you perform experiments that are simple, safe and perfect for kids. Enjoy our fun science experiments, make cool projects with easy ideas for children, show friends & family what you've discovered and most importantly, have fun!

Making an electromagnet at home is fun and easy. Most magnets, like the ones on many refrigerators, cannot be turned off; they are called permanent magnets. This one can be and is therefor called an electromagnet. They run on electricity and are only magnetic when the electricity is flowing. The electricity flowing through the wire arranges the molecules in the nail so that they are attracted to certain metals.


It’s important to get kids involved in science early so they understand the world around them. These science kits focus on critical thinking skills that will give your kid’s hands-on experience to build their curiosity and interest. Help your children discover the fun in learning by checking out these kits that teach them how to conduct their own experiments through the many different fields of science.

We have categorized by age to make things really easy when deciding which type of experiment kit to go for and start experimenting with. There is everything from geology rock experiments, ocean discovery kits, volcano boxed experiments, butterfly and insect garden kits, robotics activities and kits, human biology box sets and chemistry sets that bring the obscure into light making learning loads of fun and super exciting for everyone involved.  These mentioned are only in the 3 years old and over a section, but we also have a 6 years old and above, because we understand the capabilities of children. The section for 8 years old and above come under one section to help make a clear distinction.


a tube, yeast, sugar and warm water, a deflated balloon over the top shake the yeast “farts” which causes the balloon to inflate. I did this at a sleep over with boys 7 to 9 they loved it. you can use an empty water bottle, 1 packet of active yeast, 1/4 cup warm water 1 tsp sugar, large balloon, ruler to measure. measure in 5 min increments. The water wakes the sleeping yeast up. they wake up hungry, you feed them the sugar and their waste/farts are gas that fill the balloon. As they eat the more gas they produce thus filling the balloon. It doesn’t blow all the way up, but it is cool. – Jackie
Geode Kits – For any child who thinks rocks are boring – a kit where they can break open their own geode is a great way to change their mind. National Geographic is a great choice if this is the type of kit you are looking for. Their products include hand-picked geodes and come with safety goggles and a stand for your child to proudly display their treasures. A great choice for children aged around 6 years old and above, they’re sure to be more interested in Earth science after this experiment.
Kids ages 5-8 are at a crucial time in their understanding of science, math, and engineering. They're old enough to grasp how big ideas like the solar system and flight, things that perhaps once seemed magical, have scientific properties that allow us to explore outer space and build rocket ships. Kiwi Crate allows children in 1st, 2nd, and 3rd grade to begin a hands-on discovery of physics, chemistry, biology, and more, with fun projects that they can assemble themselves.
This celery science experiment is another classic science experiment that parents and teachers like because it’s easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you’ll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.
Every child has different tastes and interests, but the products shown here were consistently popular with kids of all ages. We researched and reviewed over a hundred science kits and kids science experiments (and yes, had way too much fun doing it) and selected the very best ones. So no matter what kind of science lab kit for kids you're looking for - we've got you covered!
A nature journal is a great way to encourage kids to be creative and really pay attention to what’s going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they’re doing now.
Each of our crates presents kids with a multi-faceted experience that can last for hours, or even days! Our crates include a magazine with additional science experiments and activities, and lots of rich content to dig deeper into the theme. We also provide online resources and video content for every project, all designed to allow kids to explore further.
It’s important to get kids involved in science early so they understand the world around them. These science kits focus on critical thinking skills that will give your kid’s hands-on experience to build their curiosity and interest. Help your children discover the fun in learning by checking out these kits that teach them how to conduct their own experiments through the many different fields of science.
Find out how plants “drink” water with some food coloring. Use carnations, roses, or stalks of celery submerged in the colored water and watch the liquid slowly seep through the plant’s “veins” and towards the leaves. Keep an eye out -- you could have a very colorful bouquet just after the first day. Get the rundown by Dad’s Book of Awesome Science Experiments over here.
You won’t want to do this experiment near anything that’s difficult to clean (outside may be best), but kids will love seeing this “elephant toothpaste” crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The “toothpaste” is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).
Refraction is when light changes direction and speed as it passes from one object to another. Only visible objects reflect light. When two materials with similar reflective properties come into contact, light will pass through both materials at the same speed, rendering the other material invisible. Check out this video from BritLab on how to turn glass invisible using vegetable oil and pyrex glass.
This is an easy experiment that’ll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child’s head, but no need to worry about spills because the bag won’t leak? Why not? It’s because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that’ll quickly join back together when they’re forced apart. 

These sound like big words for our little ones, but there’s an easier way to break it down. Water and oil won’t mix because they’re not the same “weight” or substance (just like clay and LEGOs won’t become one). Now add a drop of food coloring (which is heavier than oil) and a fizzy tablet and watch the air bubbles take coloring with them to the top. Head on over to S. L. Smith’s blog to see how it’s done.
Ah, slime. It’s the one thing that parents across the UK have been being pestered to make, so why not turn it into a science activity? For our concoction, we mixed shaving foam, PVA glue and a little bit of air freshener (fabric conditioner can work too!), to create a slime that you can swirl, stretch and crack, providing hours of fun. Try changing the quantities to see how the mixture changes, and ask the kids to explain the differences.

A nature journal is a great way to encourage kids to be creative and really pay attention to what’s going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they’re doing now.
Making an electromagnet at home is fun and easy. Most magnets, like the ones on many refrigerators, cannot be turned off; they are called permanent magnets. This one can be and is therefor called an electromagnet. They run on electricity and are only magnetic when the electricity is flowing. The electricity flowing through the wire arranges the molecules in the nail so that they are attracted to certain metals.
Let’s be honest, we’re all secretly waiting for the hovercraft to be a bonafide mode of transport, but in the meantime why not try this Balloon Hovercraft experiment at home? Using just a balloon, a bottle cap and a CD, you’ll be able to create a hovercraft that glides across the table to move, and with just 3 easy steps to follow, it’s perfect for a quick at-home activity.
Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won’t absorb the water.
Kids will love shooting pom poms out of these homemade popsicle stick catapults. After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they’re ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.
Learn interesting science and technology facts by experimenting with different materials that react in surprising ways. You'll find a lot of experiments can be done using simple ingredients found around your house (with adult supervision of course). Basic materials can help you perform experiments that are simple, safe and perfect for kids. Enjoy our fun science experiments, make cool projects with easy ideas for children, show friends & family what you've discovered and most importantly, have fun!
Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment. By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you’ll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.
The "volcano" was basically a miniature mound that fizzled. Could get a bigger reaction from dropping an Alka Seltzer in water or mixing baking soda with a little vinegar. The "giant crystals" only grew a couple of centimeters. All the experiments are on such a miniature scale it doesn't have any of the wow factor we were looking for. I will go back to googling fun experiments to do with my son.
You’ve probably tried a salt crystal growing kit at some point in your life (5th grade Science Fair perhaps?) but Schooling a Monkey takes the idea to a new level with these Salt Crystal Feathers. This awe-inspiring project is deceptively simple and inexpensive to achieve, and requires just a wee bit of patience to see the results—kids will love checking in on the progress. Visit Schooling a Monkey now to get started. 

Scientific Explorer My First Mind Blowing Science Kit is your junior chemist’s introduction to the world of scientific exploration. Learn the basics of science from chemical reactions to the use of science tools. With mind blowing experiments such as creating a sunset in a test tube and making a color-changing volcano, children will love learning fascinating facts about their natural world and this kit will keep them engrossed with interactive experiments. Includes Red cabbage powder, citric acid, baking soda, 3 color tablets, crosslinked polyacrylate copolymer, vegetable oil, corn starch, 2 cotton swabs, 3 test tubes with stand, 3 plastic cups, pipette, 2 sticks, 2 measuring scoops and activity guide. Recommended for children 6 years of age and older with adult supervision.
Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment. By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you’ll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.
Kids this age will probably enjoy a whole range of different science kits. It’s good to look for something which will help with what they are learning about at school. Pre-teens are becoming more and more independent, so it might be worth looking for an experiment kit which is simple enough for them to do alone, but still hard enough to keep them entertained and learning.
Red cabbage powder (0.25oz/7g), citric acid (2oz/59ml), baking soda (2oz/59ml), 3 color tablets, cross-linked polyacrylamide co-polymer (0.5oz/14g), vegetable oil (2oz/59ml), corn starch (2oz/59ml), paper, 2 cotton swabs, 3 test tubes with caps, test tube stand, 3 plastic cups, pipette, stir 2 sticks, small and medium plastic measuring scoops and activity guide.
Sometimes classroom learning leaves out the fun and resources and funding limit the options, especially with crowded classrooms. This is why here we aim to highlight the importance of one to one teaching and a good student comes usually from a patient teacher. Wisdom and guidance combined with excellent equipment could save lives in years to come and what seed is planted today with creating the foundation for life to come in the future.

Homemade Kits – There are probably loads of objects around your home already, which can be used to set up your own science experiments. These include things like salt, baking soda, vinegar, soap, cornstarch and of course food dye to make things more interesting! You’ll also need some basic equipment like tweezers, ramekins or small tubs, a funnel and a dropper for example. There are too many home science experiments to discuss here, but with these basic supplies you’ll find you can perform some really cool experiments to amaze the kids!

There are many different types of children’s scientific equipment and learning activities and here we will review some of the best and feature the highlights and reasons to choose one over the other. Some like to use home-made diy type science activities and others prefer the box sets that come all prepared. Both are fantastic and we applaud the parent willing to spend the time going through kitchen worktops and cupboards to make learning enjoyable for their kids.
If you’ve ever wondered how elephants keep their tusks clean, we’ve got the answer. They use elephant toothpaste! Find out how to mix your own and figure out the science behind this dynamic exothermic (heat releasing) reaction from Asia Citro at Fun at Home With Kids. Our favorite part? That you get to throw in some sensory playtime after the action’s over.
There is a wide range of price and quality, which is normally reflected on each other and the higher the price the better the quality. However, kids are surprisingly happy with what they get and if the budget is low to make sure you’re enthusiasm is high. Kids love when you get involved and make the science magic happen, so ideally get enthusiastic.

If you’ve ever wondered how elephants keep their tusks clean, we’ve got the answer. They use elephant toothpaste! Find out how to mix your own and figure out the science behind this dynamic exothermic (heat releasing) reaction from Asia Citro at Fun at Home With Kids. Our favorite part? That you get to throw in some sensory playtime after the action’s over.


It’s important to get kids involved in science early so they understand the world around them. These science kits focus on critical thinking skills that will give your kid’s hands-on experience to build their curiosity and interest. Help your children discover the fun in learning by checking out these kits that teach them how to conduct their own experiments through the many different fields of science.
It’s natural to have a lot of questions about the world. As you wonder about these things and ask questions, you are learning. Curiosity about science helps you become an explorer finding out how things work and why things happen. Anyone can be a scientist, performing experiments to ask questions and get answers. You can even be a scientist at home, working on experiments with ingredients you probably have in your kitchen or laundry room. Always get a parent’s permission before you conduct experiments. Working as a team with an adult is best for safety.
The best science experiments guide for kids ages 3-9. This is YOUR go-to resource for all things STEM and science all year round!  STEM stands for science, technology, engineering, and math. You can make STEM and science exciting, educational, and inexpensive for young kids. Fun and easy science for kids starts here! Don’t hesitate getting set up for science at home right away. 

Making a borax snowflake is a crystal-growing project that is safe and easy enough for kids. You can make shapes other than snowflakes, and you can color the crystals. As a side note, if you use these as Christmas decorations and store them, the borax is a natural insecticide and will help keep your long-term storage area pest-free. If they develop a white precipitant, you can lightly rinse them (don't dissolve too much crystal). Did I mention the snowflakes sparkle really nicely?
This kit also teaches your kids about the influential scientists who paved the way in the field, such as Francis Crick, James Watson, and Gregor Mendel. From genes, heredity, traits, and inheritance, to reproduction, cellular components, DNA sequencing, and genetic engineering—this kit will teach it all in a fun and educational way that your kids are sure to love.
Like the popular baking soda and vinegar experiments, this film canister rocket literally takes it to the next level by using that creation of gas and energy to jet off into the sky. If your explorer has seen videos of mountain tops getting blown off during a volcanic eruption, this science project is pretty much any space lover’s version. Get the building instructions over at kids science activity blog The Science Kiddo.
This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)
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