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.
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…
If you’ve ever blown a dandelion that’s gone to seed, you’ve probably found that the little parachute-like seeds detach easily and seem quite delicate. However, dandelion seed puff balls are stronger than you think! A whole dandelion head can be placed in water and removed again, almost completely undamaged! What happens to a dandelion in…
BrushBots are super simple mini robots that only need a few bits of inexpensive kit to create. All the materials can be reused in other robotics projects too. They are easy to build and can be customised in many different ways! These mini robots can be made as a class science project, a simple STEM…
If you love chocolate, this is the STEM challenge for you! All you need is a bar of chocolate, a warm sunny day and some bubble wrap, kitchen foil and black or white paper. The challenge is to find a way to package a chocolate bar so it doesn’t melt in the sun. This activity…
Density can be a tricky concept to grasp. Density refers to how much mass there is in a particular space. Imagine a drawer full of socks. It has a specific density. Suppose you take a sock out, the density of the drawer changes. This is because the mass of the socks has changed, but the…
Can you believe it’s been over 50 years since humans landed on the moon for the first time? This historic event was not only an incredible feat of science and engineering but also led to many innovations that have improved human life since. If you have children who are fascinated by space travel ( or…
How many times a day do you yawn? Do you find yourself yawning if someone near you yawns? Do you associate yawning with boredom or tiredness or both? Humans yawn around 7-10 times a day, although I have already yawned 3 times writing this so perhaps if you think about yawning you yawn more… Yawning…
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