Imagine you have a blank map of the world. How many colours do you think you’d need to colour it so that no two countries sharing a border are the same colour? The answer is surprisingly low, just four! If you were to draw a very twisty shape, you’d still only need four colours to…
You’ve probably never sat down and thought about what soil is actually made of, but it’s a lot more than just mud and dirt. It plays a crucial role in supporting life on Earth, anchoring plant roots, delivering vital nutrients, and providing a habitat for billions of microorganisms alongside creatures like earthworms, ants, and beetles….
Ultraviolet (UV ) light is invisible radiation that can damage your skin and eyes if you don’t protect yourself. If your kids are anything like mine, they find sunscreen a bit of a sticky inconvenience, so UV beads are a fantastic way to visually demonstrate how sun cream protects our skin from too much UV…
Do you know that adding carbon dioxide to water makes it more acidic? We used red cabbage indicator to test the pH of tap water and carbonated water from a Sodastream. The tap water was slightly alkaline, and the fizzy water was acidic! This is another great way to demonstrate the effect of carbon dioxide…
The ocean covers about 71% of the Earth’s surface and holds about 97% of our planet’s total water. Despite the vastness of our oceans, they are being massively impacted by human activity. Microplastics have been found at the bottom of the Mariana Trench, fish populations are declining due to overfishing, and the oceans are warming…
Have you ever wondered why balls bounce? This activity uses differently shaped balls to investigate how and why balls bounce differently. I’ve included FREE instructions for a science investigation to find the bounciest ball with a handy table for recording results. Balls to use: Look at the differently shaped balls and try bouncing them on…
Do you know you can change the colour of white flowers by placing them in a pot of food colouring and water? This easy colour-changing flower science experiment is great for learning about transpiration and transport in plants. Easy Transpiration Experiment How to make colour-changing flowers You’ll need White flowers Food colouring – we’ve found…
Here at Science Sparks HQ, we love a bit of magic, whether it be a memory trick, slight of hand or even some science magic. These 10 easy science tricks for kids are great fun and mostly super simple. The density one is a little tricky and potentially messy, but well worth the effort for the…
In this science activity, you can put a balloon into a candle flame without it popping! How is that possible? It’s all about heat transfer. A balloon filled with air will pop when it gets too close to a flame as the heat from the candle warms the balloon’s skin and weakens it. The trick…
This simple science experiment and demonstration is a great way to show children what happens to gases when they are heated. The air around us is an example of a gas. Particles in a gas can move freely in any direction. Gases don’t have a fixed shape but fill the space they have. When a…
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