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    Home » Science Projects » Awesome Science Fair Projects for Kids

    Awesome Science Fair Projects for Kids

    March 9, 2019 By Emma Vanstone 4 Comments

    Here at Science Sparks we LOVE a good science fair project but appreciate that not everyone feels the same way, so here are a few amazing ( and easy ) science fair project ideas to give you some inspiration.

    Science Fair Top Tips

    Let your child choose a science project that interests them, I find my children are much happier to get stuck into a project that they have chosen rather than something I think they should do. Obviously if they choose something too difficult you might have suggest something a little easier. A good starting point is to narrow it down to a selection of five you think would work for both of you and allow the child to make the final decision.

    If you have a child who thinks they don’t like science and just isn’t enthusiastic, try to combine science with something they do love. For example, there are lots of brilliant art and science projects around. Or if you have a child who likes to build things, try one of our engineering projects. Books and stories can be a great source of inspiration too. We’ve got lots of story themed science activities for inspiration.

    Try not to take over. I am terrible for interfering too much, but I’m really trying to take a step back and be the helper rather than the leader.

    Image of a DIY drinks dispenser, drawing robot, volcano and slime!
    Science Fair Projects

    Messy Science Fair Projects

    Slime Investigation Ideas

    Why is slime slimy?

    Find out why slimy has the properties that make it fun with a slime investigation using our easy slime recipe.

    How can I make clear slime?

    Make a batch of slime using opaque glue and one with transparent glue and compare the two. Slime made using soluble fibre is another variation you could try.

    Can I make slime without glue?

    YES! This slime recipe using Guar Gum looks great!

    We have three borax and glue free slime recipes you could try too.

    What’s the science behind slime?

    Glue flows because the polymer chains slide over each other. When you make slime with glue and saline solution ( which contains boric acid ) the boric acid in the saline solution reacts with baking soda to form borate ions which form bonds between the polymer chains of the glue. This is called cross linking and is what makes the slime mixture stick together, making it slimy!!

    Green slime stretched out

    Make a soda dispenser

    This AWESOME soda dispenser idea is from from Steve Spangler and uses the good old mento and soda trick where you drop a mento into a bottle of coke and watch it fizz. You could use the activity to investigate how different types of sodas have different levels of reaction, and challenge yourself to see how many cups you can fill.

    If you’d rather a less messy DIY drinks dispenser, we have a version that uses air pressure to dispense the drink and can be used over and over again.

    Drinks dispenser made using a straw, balloon, plastic bottle and peg. This is a great air pressure demonstration.

    Erupt a volcano with baking soda and vinegar

    Learn about chemical reactions with a baking soda volcano. Experiment to find the perfect combination of vinegar, baking soda and washing up liquid ( dish soap ) to make the most realistic looking lava. Does thicker lava flow more slowly?

    You could make a volcano from papier mache, modroc, sand or snow! Try making different colours, sizes and shapes.

    Papier mache volcano for a science project

    Babble Dabble Do has an amazing lemon volcano that we bet will smell amazing too!

    Red Ted Art has a brilliant erupting papier mache volcano too!

    Lave made from snow using food colouring, baking soda and vinegar for the eruption.
    Coloured Snow Volcano

    Weather Science Fair Projects

    Track changes to the weather over a period of time by making a barometer to measure air pressure, a rain gauge to measure rain, a pinecone weather station and other fun weather science activities.

    Weather based investigations are great if you have a period of weeks or months to track changes and a perfect for learning to record and display data. We love weather science!

    Weather Science experiments for kids . Perfect for a science fair experiment
    Weather Science Experiments

    Food Science Fair Projects

    Why does fresh pineapple stop jelly setting?

    Try some kitchen science and investigate why fresh pineapple stops jelly setting. You might find some other fruits have the same effect…

    Jellly on a plate

    Edible Life Cycles

    Create a series of edible life cycles. This butterfly life cycle is a great example to get you started.

    Edible Butterfly Life cycle made on a plate. Orange segments for the butterfly, leaves and a white seed for the egg, peas for the caterpillar and a physalis for the chrysalis
    Edible life cycle

    Investigate tooth decay with egg shells

    Egg shells are the perfect material for investigating the effect of different substances on teeth. Coffee, vinegar and fizzy drinks are great things to try first.

    Density Science Fair Projects

    A density jar makes for a wonderfully visual science demonstration. See how many layers you can float on to of each other and try to find an object to float on each layer.

    You could even try a little science magic trick. Although this can get messy so be careful.

    Density jar made with vegetable oil, milk, water, dish soap and honey. Great for a science fair project.
    Density Jar Science Fair Project

    Osmosis Projects for a Science Fair

    Osmosis always sounds like a really tricky subject, but actually it’s pretty simple. You can use eggs with no shell to demonstrate easily.

    Use eggs to investigate osmosis and diffusion.This simple, low cost activity is great for explaining quite complex processes and very visual as well.

    The photo below shows how water has moved into one egg ( with the shell removed ) and out of the other.

    Using eggs to explain osmosis. Two eggs in egg cups, one swollen with water and one shrunken
    Eggs shrunken and enlarged because of osmosis

    Make a Scribble Bot

    A Scribble or Art Bot is a fantastic creative science fair project. Try changing the position of the pens and size of spinner to change the effect.

    Science for Kids - How to make an art bot
    Art bot
    Awesome Science Fair Projects for kids of all ages. Make a density jar, drawing robots and lots more #sciencefair #scienceprojects #scienceforkids
    Science Fair Projects

    If you didn’t quite find what you were looking for, try one of our other easy science experiments for kids

    If you’re looking for an inexpensive prize for a science fair, how about one of our science books?

    Last Updated on September 16, 2022 by Emma Vanstone

    « Awesome Science Projects For Kids
    Charles Darwin and a Natural Selection Activity »

    Safety Notice

    Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

    These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

    Reader Interactions

    Comments

    1. Brian Martin

      January 30, 2016 at 5:35 am

      A soda dispenser as a science fair project sounds about perfect. I could use one at home too. lol

      Reply
    2. Rebecca

      March 11, 2019 at 9:20 am

      I always wondered why the kids loved slime now i know why after making some with them after the recipe you included, in your lovely blog, now i know exactly why.

      Reply
      • noah

        November 18, 2019 at 4:14 pm

        thanks for the info

        Reply
    3. GirlsGospel

      March 03, 2020 at 9:56 am

      Love these! We did the volcano one and it was fab! Thank you 🙂

      Reply

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