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.
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!
There are loads of different science kits to choose from and we know it can be confusing sometimes which types are ideal for younger children to begin experimenting with. Therefore we have picked some really cool experiment kits. In this review, we have reviewed a whopping 32 science kits that stand out as the best overall, so choosing couldn’t be easier. All have an appropriate age guide so you can’t go wrong with picking.
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.
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.

For this saltwater density experiment, you’ll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.
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.
In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp. Oil and water don’t mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you’ll end up with a homemade lava lamp!
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.
This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.
Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child’s specific interest or what they’re currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

There are a lot of science kits for kids out there, so it can be difficult to work out which brands are the best. Some of our favorites for realistic experiments include 4M and National Geographic. For younger kids, the Kids First brand has a lot of good value kits to choose from. The brand Sick Tricks is also a great choice for kids looking to impress their friends or parents with new tricks and experiments. For robotic science kits, Cozmo and LEGO are great options.
Ever got an electric shock off something? Demonstrate the science behind the shocks with this jumping frogs experiment. With just a balloon, some sugar paper and a woolly jumper, you’ll have frogs leaping in no time demonstrating the power of static electricity. It doesn’t have to be frogs either, let your imagination run wild to create some other jumping stars of this easy science experiment!

By creating an articulated hand model, you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You’ll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.


There are many fun ways to get your children into natural science and Geodes are one way. This starter kit has 7 unique and fascinating ways to get discovered the mystery of the earth crust. Geodes are natural and a wonder to many who like to collect, but even as a one-off this is a great way to get kids thinking. This is fun and the breaking aspect always makes things interesting for those that need some initial enthusiasm.
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.
Is it a liquid or solid? The answer is both! This DIY slime—made from glue, borax and water—is also known as a polymer (molecules that can stick close together to be a solid or spread apart and take liquid form). And it’s all thanks to borax, which acts as a binder to prevent the glue from going completely liquid. Check out Explorable’s recipe on mixing the ingredients. Prolong the life of your goo by keeping it in an airtight container in the fridge. 

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won’t be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton’s first law.
This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn’t frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it’s one of the causes of erosion.
Ideal for introducing science-based activities to young children, Cassie’s experiment for mixing colours and water is a simple science experiment designed for preschoolers. Let your little one choose which colour to use when, ask them to describe the colourful shapes they’ll see dancing in the water and see what happens when you mix more than one colour together.
Have fun exploring science around your house and backyard. Take pictures of your experiment steps and make a science experiment notebook to record your findings. It’s safest to work with a parent or other adult when performing science experiments, though. Always get permission before you work like a scientist, and ask an adult to help you with the experiment steps.
Adults and kids will learn amazing new things about basic and acidic solutions with the Mind Blowing Science Kit. Whether erupting a color-changing volcano, creating a sunset in a test tube, or growing colorful, jiggly crystals, this science kit mixes learning with experimentation in a fun and colorful way for a wide range of ages. Each of the hands-on activities in the science guide is intended to be performed by a young scientist under adult supervision, although these activities can be adjusted to accommodate a range of ages and capabilities while still maintaining the educational excitement of the original experiments. In addition to providing detailed instructions, the science guide makes it possible for those adults who might not have a background in science, or even any exposure to scientific experimentation, to knowledgably perform experiments successfully. The dynamic, colorful nature of the experiments included in this kit make it great for pleasing a crowd at family gatherings, parties, or science fairs.
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.

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!
If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you’ve filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don’t feel the cold water nearly as much.
You could even step into the living room to have more scientific fun. Learn about static electricity with some tiny scraps of paper and a balloon. Blow up the balloon and tie it closed. Make a small pile of paper scraps on the floor, and rub the balloon back and forth several times on your hair or on a sweater. Immediately move the balloon to the paper and watch as the paper scraps cling to the balloon. Rub the balloon on your head or sweater again and then place it against the wall to see it stick there. This surprising sticking happens because you have moved electrons around and the balloon now has more of a negative charge, while the paper or the wall has more of a positive charge. Putting the two surfaces together makes the opposite charges stick to each other.
If your snacker has noticed how their apples have turned brown after being left out for too long, then they’ve seen oxidization in action (loss of electrons and nutrients when in contact with oxygen). Fortunately, lemon juice only oxidizes when in contact with heat. This method works with baking soda and milk too. Click here to find out how to write secret messages with your little spy.
Scientific Explorer is the industry leader in fun and educational activity-based science kits for children. Appreciated by parents for their educational value and loved by children for their hands-on fun, Scientific Explorer kits help develop critical thinking skills, inspire imagination, and encourage exploration through interactive experiments and activities that help make learning fun. Scientific Explorer is a member of the Alex Brands Family. 

Everyone can get ahold of a few potatoes, and what better way to use them (aside from consumption, that is) than to make them into an operating clock? It’s easy and only requires the use of a few things many people have handy, or, if you need to go to the electronics store to purchase an LED clock anyway, you can get the alligator clips and electrodes there, as well.
Adults who are supervising experiments do not need to be science gurus. In addition to step-by-step instructions for each experiment, the detailed science guide included with this kit provides adults with "mind blowing science secrets" that help to answer questions about what's happening in each experiment. All of the materials and experiments involve basic scientific concepts associated with acidic and basic liquids and are arranged to present these concepts in sequential order. The descriptions included in the science guide give background information related to each reaction and offer questions that adults can ask to help encourage fun learning during experimentation.
Younger children are most likely to be interested in something which is very hands-on, and gives results quickly. They probably won’t be interested in growing a crystal, and are probably a bit young for something like a robot building kit. Young kids will be most likely to enjoy a gross science kit, or a volcano kit. Also think about safety features when buying for younger children. Make sure they won’t eat anything they shouldn’t, or there are no small parts which could be dangerous.
My nieces are seven years old and into science. The experiments were easy and straightforward - easily read and done by the kids but adult supervision is probably a good idea. Mind blowing? Not so sure about that but very cool for the budding scientist. Perfect kit to start with. I think it's a cool way to encourage girls to love science and math. Boys will love it too - an exploding volcano! - so it really is great for the whole family. Younger kids could definitely participate with the aforementioned supervision. We LOVED it!
This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn’t frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it’s one of the causes of erosion.
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.
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.
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 simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won’t be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton’s first law.
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.
This experiment is a great way for young kids to learn about static electricity, and it’s more fun and visual than just having them rub balloons against their heads. First you’ll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly’s wings. The wings will move towards the balloon due to static electricity, and it’ll look like the butterfly is flying.

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.
Wonderful ideas! As a former science teacher, science department chair and system-wide science supervisor,; I salute you! It is mothers like you who keep the spark of investigation going in the eyes of our children. I love, love love hands-on science! You are training the scientists of tomorrow…or maybe the artists…doesn’t matter, we need both! Suggestion: let them see how many drops of water they can get on a penny. All you need is a penny, a medicine dropper and water. Oh, and a very steady hand and table that doesn’t shake. Then fill a jar with water (almost to the top) and predict how many pennies they can put in until the water overflows. Good lesson in surface tension and cohesion. You will need a steady hand, sturdy surface and a lot of pennies! I have some others, but no enough space.
If your snacker has noticed how their apples have turned brown after being left out for too long, then they’ve seen oxidization in action (loss of electrons and nutrients when in contact with oxygen). Fortunately, lemon juice only oxidizes when in contact with heat. This method works with baking soda and milk too. Click here to find out how to write secret messages with your little spy.
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.

Are you looking for cool science experiments for kids at home or for class? We’ve got you covered! We’ve compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that’ll really power a lightbulb, and more.
It takes a few hours to see the results of this leaf experiment, but it couldn’t be easier to set up, and kids will love to see a leaf actually “breathing.” Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you’ll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.
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.
Are you looking for cool science experiments for kids at home or for class? We’ve got you covered! We’ve compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that’ll really power a lightbulb, and more.
This is the most kid friendly and fun lab kit you can get. My kids are ages 2 and 4 and cannot get enough of this. Everything in the kit is high-quality, and this kit lasts a very long time. We have done these experiments over and over for 3 months and only recently have used an entire bag of something. I admit to even being impressed by how cool the activities are. This is worth every single penny. I will 100% be ordering another kit when we deplete all the things in ours.
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.

Understanding the different states of water is one of the most simple examples of a science experiment, but it’s also a really great way to bring STEM activities into daily life. Kate combined her son’s love of Batman with science, to create a character ice escape experiment. Using parent stealth mode, find some plastic toys to experience the big freeze and get to work. Let kids discover the tools they’ll need to speed up the process and see how quickly they can set them free.
This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won’t be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton’s first law.
With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary “rocks” will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.
Be careful: The water only has the power to make the sugar crystals “invisible” when it’s piping hot. After the water cools down and evaporates, the sugar turns back into a solid. And with a little help of your sugar-soaked string, the crystals will find a home to grow upon and become rock candy. Learn how to make your smart sweets with these instructions from the Exploratorium. 
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