Easy Science Experiments For Kids – Start Simple

Are Children Science Magnets?

Our children are scientists!

Easy Science Experiments For Kids

From the moment they can move, we as parents are plunged into a world of protection and guidance, as they start a lifetime journey of interactions and discovery with the world around them.

Children need hands-on experiences and challenging outcomes to satisfy their relentless desire for knowledge.

Keeping it Simple

Easy science experiments for kids, performed at home can be a truly fantastic way for children to acquire science knowledge. More often than not the results of an experiment are not what kids are expecting. This creates a sense of wonder and a desire to repeat what they have seen.

Science experiments don’t have to be complex or flashy to captivate their interest.

Emphasis on the active participation and interaction is far more important than a multitude of props, lights, and smoke! Simple experiments at a young age can become cherished memories, leading to a lifelong affinity with science and it’s experiments.

Easy Science Equipment

The average home is crammed full of items that we all take for granted as we go about our busy lives. Everyday objects such as cups, glasses, chocolate, water and even potatoes can seem pretty mundane. Not so fast….

Household clutter they maybe, but for a budding young scientist, this is prime real estate for experiments.

Time To Experiment – Floating Eggs?

To perform this simple but amazing experiment we will need just a few things from the kitchen.

  • An egg (shell intact)
  • Table Salt
  • A glass big enough to contain the egg
  • Water – from the tap
  • Small spoon

What are we going to do with this stuff? Well its quite simple really…. Remember this is a safe and easy science experiment, so encourage your child to interact and get as hands-on as possible. Science is fun!

  1. Fill the glass with water so that it is about 3/4 full.
  2. Get a child to gently drop the egg into the water.

What happens to our egg?

Does it stand on its end ?….or perform a figure of 8 in the water…….. No!

It sinks like a stone. How boring!!

Okay, let’s move on and see if we can help our egg to do something special.

  1. Using the small spoon let your child sprinkle a spoonful of salt into the glass.
  2. Continue to add a spoonful of salt slowly, one at a time until something happens.

What happens to our egg once we add a few spoonfuls of salt?

That’s right! It starts to rise in the water and with a few more spoonfuls it will happily float on top. Eureka!!

Are Easy Science Experiments Easy to Explain?

Science is science and some language used to explain the results of our easy experiments can sometimes be rather tricky for young children to grasp. Whilst it is important to offer an explanation in such a way that is easy for a child to comprehend, please don’t be tempted to change the science vocabulary.

A real benefit to performing these experiments for children is the promotion of new vocabulary and science concepts.

Let’s Try to Explain What Just Happened

Why did our egg float to the top of the water?

The explanation is based on the difference in density between the water and the egg density.

Density is described as the mass of an object divided by its volume.

The mass of an object is determined by the atoms it is made from. For simplicity’s sake, the more the atoms are compacted the greater the mass of an object.

If we imagine 1kg of feathers next to 1kg of iron, we would see that the volume (space) of feathers would be far greater than that of the iron. Therefore, the density of iron is much greater than the density of feathers -Simple!


When we add the egg to the tap water the egg sinks to the bottom because the density of the egg is greater than the density of the water. Adding salt to the water increases the mass of the water, as the salt is absorbed into it

More and more salt was added to the water increasing its mass with every spoonful. Given that the volume of the water solution has not changed much at all, the density of the water increases. Eventually the density of the water increase so much that it becomes greater than the density of the egg. At that point, the denser water sinks to the bottom causing the egg to float on top of it.

This simple experiment can be used to explain why is it easier to float in the sea than in a local swimming pool. The higher the density of the water the easier it is to stay float within it.

This is demonstrated in dramatic fashion with a swim in the Dead Sea. The Dead Sea is the saltiest and lowest body of water in the world. In fact, a swim in the dead is probably not a good physical description. From a buoyancy perspective, it is almost impossible to adopt a normal swimming position. The Dead Sea is almost 10 times saltier than a typical sea so humans typically float, much like the egg in our experiment.

Accessible Science – You Have a Role

By utilizing everyday equipment and items from around the home, I want to break down the barriers that make science experiments something that we only read about in books. There is a whole world of tried and tested experiments out there that our children have simply not had the opportunity to experience.

Whether we are recreating experiments from the past or performing new experiments to drive future science initiatives and technological development, we have a duty to enable and encourage new scientists to get involved.

In this series of simple experiments, I want to continue the theme of simplicity and almost instant results. Observing change is fundamental to a child’s positive experience, especially at the outset.

Science experiments can be easy and enjoyable for the whole family.



  • Awesome! I used to love science experiments as a kid. I would add a little of this, then a little of that to see what happens. Usually, created a mess! lol. I don’t know why, but kids are drawn to the unknown. I think my curiosity always got the best of me.

    • Hi Bella21 and thank you for taking the time to read and comment on this experiment.

      When I was young a friend and I bought a chemistry set from a school fair and took it to his home to experiment. Thankfully the house is still standing but his parents weren’t so happy about the smells we created. The important point here is about getting involved and these days we can interact and obtain results in a far more safety conscious environment.

      Please come back and check out more experiments and reviews as we add them

  • Omg I love this article . My son was a big time into his science projects . I tried to have him do simple ones. He ended up doing one on how coffee affect the blood pressure. Great article i am saving this for my daughter.

    • Thank you for the positive comment Crystal and welcome to my site. I will take a look at that coffee experiment and see if we can do something with it. Thanks for sharing and please let me know if there is a topic or experiment I can help to cover for you here.

  • I have the best memories of science experiements!
    Thank you so much for the nostalgia lol. Nicely put together.

    • Hi Eric – Thank you for your comment! It feels so good to enable a trip down memory lane for you. I think lots of children have fond memories of science experiments and that’s why I want to help parents to get involved at home. If you have a favorite experiment from your past, drop me a line and I will do my best to show it.

  • Hello Nick:
    Curiosity is a fundamental issue of not only humans but animals in general. Your website about Science for kids is mostly interesting to fill that curiosity they naturally have. The experiments you write about are excellent examples. Keep up the good work my friend for the benefit of kids and science!
    Best regards from México.

    • Hello Eugenio.

      Your feedback is very welcome! You are absolutely correct about that natural curiosity. It’s easy to engage children with simple hands-on experiments.

      Appreciate the support from Mexico! – Nick

  • Valerie

    That is a fantastic experiment for children to learn from. Using an egg, water and salt is so harmless and yet scientific enough to extend their young and fresh minds. It’s a great start to greater learning as they grow.

    The experiment reminded me of one of my breathing inhalers. For some reason unknown to me, this brand of inhaler can be empty and yet still appears to be working. So to test whether it is still useful I need to fill a glass with water and drop the cartridge of the inhaler into the glass. If the inhaler is still quite full it will go to the bottom of the glass. As the content decreases, testing the inhaler it floats at angles. And when it is empty, it floats on the top of the water.

    Unfortunately, my knowledge of science is not great. But I do enjoy learning from others. Thank you.

    • Great analogy Valerie and thanks for sharing!
      You are exactly right the mass of the cartridge is reduces as the contents are propelled out. Eventually, the density decreases enough that is becomes less than that of the water, so it floats. There is other stuff going on here too due to the shape of the cartridge and displacement of the water, but that is another experiment 🙂

      Thank you for taking the time to comment.
      I hope you will come back and enjoy new experiments as I add them to the site.

  • My sister has two daughters who are really inquisitive. They love exploring and venturing out into the world. They enjoy the process of discovery. With this egg experiment you recommended, I am sure it will astonish them.

    I am curious though. Do you have any other ideas for simple science experiments? I would like to share the egg experiment with them and more. It would help me bond with them. Thank you in advance and I hope you have a great day!

    • Hello Alex – Thanks for stopping by and reading my post.
      I will be adding new experiment posts every week. Check out my other posts on Growing Crystals and Glowing Water, they are both very simple and engaging.
      Please come back to see the site as we grow!

  • Charlie

    Hi Nick,

    This bought back some memory’s from year 9 science class, I didn’t really enjoy science back then but you made it sound enjoyable and fun, thanks

    • Hi Charlie – Thank you for taking the time to comment. The key to this kind of experiment is the engagement between children and adults and the opportunity to have fun and learn together.
      The fun element is really important to promote!

  • Nick, I love your website. Something for the kids. Helping parents educate their children is the best thing, and then it’s fun too! My 5 & 7 year old children would love this.

    • Hi Michelle – Thank you very much for your supportive comment. Helping parents and children is our mission!
      Please come back and check our other experiments as our site grows.

  • Love, love the idea and direction we can use to educate our kids. I think it’s a Chinese proverb ( I could be wrong): “I hear and I forget, I see and I know, I do and I understand”. It works!
    Thanks for the info, will follow your web for new ideas.

  • This is fantastic Nick, thank you =) You made a somewhat advanced topic to a nice and easy to understand one. Density is such an advanced topic to discuss but with your visual illustration, it will definitely be a breeze. Super thanks again. I’ll keep on following you as I find it very helpful to shed light on some scientific ideas that can be child-friendly =)

    • Hi JR, Thanks for stopping by and taking the time to comment.
      Please let me know if there is an experiment or a topic you would like to see covered.

  • I am pleased to find a website that can provide ideas to entertain our children. We tried the experiment without success as we ran out or salt. 2 teaspoons wasn’t enough. We will try again after shopping day lol. The world seems to focus on keeping children on computers, phones and television. Keep coming up with the ideas to help us parents entertain and educate our bored kids.

    • Hi Dave – Thanks for the comments and sorry your salt stock was a bit low. I would be interested to hear how you get one with this experiment once you have enough salt:-) Please come back soon to check for more.

  • Rob L

    This is terrific. I was looking for a starter science experiment for my 7-year old son to do for a school project. He was very enthusiastic to try and he understood the basic principles. This has fueled an interest in us doing more kinds of experiments. Thank you!!!

    • That’s great to hear that your son was keen to try the experiment. The floating eggs is a wonderful choice as a school project for younger ones. It’s really simple to do and a great introduction to the world of practical science. Thank’s for stopping by Rob!

  • Nick, speaking of salt, did you know that in a pinch salt can be used to put out small fires. I know it works as I have tried it. But you certainly need a bit more than a pinch.

    Here are a couple more experiments we did as kids. The glass of water and icecubes, filled right to the top with the icecubes floating above the rim. Then watch the ice melt. Everyone gets worried about spillage. But hey, no spillage as icecubes to water takes up less volume.

    The second one is the egg in the bottle trick. Take one hard boiled egg and one glass (milk bottle sized) bottle. Stick a birthday candle in the narrow end. Don’t break the egg. Light the candle and hold the egg near the bottle mouth, but don’t seal the mount. Let the candle warm the air a bit and then seal the mouth with the egg. Result egg in bottle. It’s a bit tricky to get the egg out but nowadays you must so the bottle can be recycled!

    This article really brought back memories.

    Thanks and Ciao

    • Hi Helen,

      Thank you very much for your fantastic comments! If you don’t mind I will look into your experiments and explore the science behind them in further posts, they sound intriguing?

      Iḿ so glad they this one brought back some pleasant memories for you!

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