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.
Baking soda volcanoes are one of the classic science projects for kids, and they’re also one of the most popular. It’s hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the “volcano” as elaborate and lifelike as you wish.
The word “oobleck” comes from a Dr. Seuss story where a young boy must rescue his kingdom from a sticky substance. But the neat part of this experiment is how oobleck reacts to vibrations. Put the oobleck over a subwoofer (on top a cookie sheet!) and watch it dance to difference frequencies. Your dancer will see how sound isn’t just about volume! Check out more of this awesome experiment from Tammy of Housing a Forest. 

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.

But the point is, I had not done any of these experiments with my daughter until we got this box. This has everything in one box, with all the equipment-- including a stand for the test tubes, which another review didn't have for some reason. (And get a little bag superabsorbent polymers, too. Those little buggers are fun but somehow end up everywhere). It's fun, it's easy, there are some experiments that require patience, which is really good for this age group. We are most of the way through the kit, doing maybe three experiments a week, and now I am shopping for more kits. Because even though I have the equipment, the books, and the education to diy the whole thing... the kit is easy, fun, and we actually DO it.

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.
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. 
Invisible inks either react with another chemical to become visible or else weaken the structure of the paper so the message appears if you hold it over a heat source. But we're not talking about fire here. The heat of a normal light bulb is all that's required to darken the lettering. This baking soda recipe is nice because if you don't want to use a light bulb to reveal the message, you can just swab the paper with grape juice instead.
This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.
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!

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.
Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you’d like, and they’re a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the “rooms.” You can also use a bug ID book or app to try and identify the visitors.

Hi Jean, I too just love doing science experiments with the kids. I ran a science party for my son’s 6th birthday and I’ve also run science art workshops during the holidays. If you send me your email address I’m happy to email you my notes and experiments. Here’s the link to my post about the party last year :

While The Big Bag of Science included some fun chemistry experiments, My First Mind Blowing Science Kit focuses solely on chemistry and chemical reactions. Want to witness a sunset in a test tube? What about a color-changing (or even underwater) volcano? This kit includes ingredients your child will need to conduct these colorful experiments over and over again—or at least until the powders, polymers, and oils run out.
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. 

Call the emergency services straight away if anything goes wrong. However these are all well-tested and very safe for the ages provided by the manufacturers, so rest assured this is only a formality, but it is good to be safe and start young with proper preventative measures. After all, what you start now will set the example for what they grow up to be.
Adults and kids will learn amazing new things about basic and acidic solutions with the Mind-Blowing Science Kit. Whether erupting an under-water volcano 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.
By building a lung model, you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you’ll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You’ll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.
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.

Chemistry Kits – Perhaps the most classic of the science kit options, these are great for kids who are interested in learning about how things work. There is a huge range of kits in this bracket, ranging in features and suitability. There is a chemistry kit for just about any child, and with a bit of research it’s easy to find one to suit your child’s age and ability.

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.
It happens to the Statue of Liberty and it happens to the change in your pocket! Create your own home lab with just a few household ingredients (this experiment will literally cost you just pennies). It’s also a chemical reaction with very non-toxic ingredients, so it’s safe and fascinating even for young kids. Click over to Buggy and Buddy to get the simple how-to.
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.
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.
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!
If you do this sidewalk constellation craft, you’ll be able to see the Big Dipper and Orion’s Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.
This science kit is perfect for my son. I got it for his 6th birthday and we've been having so much fun doing the experiments. It came with nearly all of the supplies except for simple things you have in your home like baking flour and water. Other kits I've bought have required so many other items which we didn't have, this one is so easy to use. He loves using the test tubes, the dropper, measuring out the components with the scoopers. He said it makes him feel like a real scientist. His 4 year old sister likes doing experiments too. This is the best kit to buy for a young child. So easy for them AND for you. 

You don’t need a storm to see lightning; you can actually create your own lightning at home. For younger kids this experiment requires adult help and supervision. You’ll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You’ll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it’ll create a small spark/tiny bolt of lightning!

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.

The good news is that your white lab coat doesn’t have to sit in the closet collecting dust. There are a lot of fun, simple, and hands-on science projects families can do together to learn and understand some of the basic principals of the natural world. And they’re not just for kids: even moms and dads will get a kick out of these 10 family-friendly science experiments!