Science Sparks is full of easy and fun science experiments for kids to do at home. Our fun science investigations include engineering, coding, biology, chemistry and physics experiments.
Learn more about the wonderful world of science by trying our exciting science experiments, cool facts, free printables, photos and videos. We’ve also got a great collection of STEM projects, STEM Challenges and science fair projects.
Our science experiments include removing the shell from an egg, launching bottle rockets, create edible life cycles, making lava lamps and lots more science experiments for kids of all ages.
This easy science activity demonstrates the difference in density between hot and cold water. It can be a bit messy so I would either do it outside or put the jars in a tray. The demonstration works as cold water is more dense than hot water so the hot water sits on top of the…
An easy way to make salt crystals is to dissolve table salt in water and leave the solution somewhere warm until the water evaporates, leaving behind sparkly salt crystals. We also made coloured salt by adding a little food colouring. This activity and more salt science experiments can be found in a salt science activity…
If you decided to visit Antarctica, you’d struggle to survive without specialist clothing and equipment. However, penguins manage to live there perfectly well as they have adapted to survive in their harsh environment. Animals and plants have special adaptations to allow them to thrive in their natural environment. Animals need food, water, shelter and a…
I’ve been posting summer science ideas for years, but this summer I have something a little special. Welcome to my Pick and Mix Summer Science Camp! The idea is to print off the front cover, choose and print the experiments you want to try, and you have your very own personalised, super exciting summer science…
Energy is the capacity for doing work and can exist in many different forms. Energy cannot be created or destroyed but can be changed from one form to another. We call this conservation of energy. Forms of energy There are lots of different forms of energy. Kinetic energy All moving objects have kinetic energy. A…
We’ve made many different mini catapults before, but this was our first attempt at a large version. We had SO much fun with our giant catapult, inspiring many different investigation opportunities. You can use balls of different sizes and measure how far they travel or how high they go. Another idea is to dip balls…
The question ‘How old is the Universe?‘ has intrigued astronomers for centuries. The discovery of leftover light from the Big Bang not only supported the Big Bang theory but also allowed scientists to calculate the age of the Universe. The Big Bang is the current accepted theory of how the universe began and the start…
The Big Bang is a theory about how the Universe began. Most scientists believe in the Big Bang theory, which is the current accepted model for the beginning of the Universe. Georges Lemaître first proposed the Big Bang theory in 1927. The theory was supported by Edwin Hubble’s research on cosmological redshift in 1929. What…
Lolly stick or popsicle stick catapults are very easy to make, provide hours of fun and are brilliant engineering and design projects. We made our popsicle stick catapults space-themed and turned table tennis balls into planets. There are so many different catapult designs and themes to choose from; you’ll be busy for weeks! Catapults are…
When part of a liquid or gas is heated, it expands and becomes less dense. The warmer, less dense liquid rises upwards, and the cooler liquid falls to take its place. This cycle of a liquid or gas rising and falling is called a convection current. Understanding convection currents helps children understand heat transfer, weather…
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