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How to make a pH indicator with blackberries
Red cabbage indicator is often used as an introduction to pH and indicators, but did you know you can make an indicator from blackberries? Blackberries contain anthocyanins, which are pigments that...
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Build a tower of ice cubes
A tower of slippery ice cubes might sound impossible to build, but adding a little salt makes it much easier! Materials Ice - 4-8 cubes Salt Plate or tray Instructions Try to stack the ice cubes. They...
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Clean Jewellery with Science
Sterling silver jewellery tarnishes easily because it contains copper. Copper makes silver stronger, but it binds with particles of sulphur in the air, producing silver sulfide, which is the black...
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Separate Salt and Pepper with Static Electricity
Did you know you can separate salt and pepper with static electricity? It works because pepper is lighter than salt, so while both salt and pepper are attracted to an object charged with static...
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10 Science Experiments Using Salt for Home and School
Salt is a brilliant, versatile and inexpensive ingredient for science at home. It can be used to cool a drink or make ice cream quickly, for a lava lamp, and to make coloured salt crystals. Salt is an...
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Does an ice cube melt faster in freshwater or saltwater?
This simple science demonstration uses only a few basic materials but demonstrates several scientific concepts and looks super impressive. Showing children the end result first is a great way to get...
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Does salty water freeze? Science Investigation
Freshwater freezes at 0°C. The presence of salt lowers the freezing point, and the higher the salt content in the water, the lower the freezing point gets. This is why salt is often used to grit icy...
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Create a Candle Carousel
Candle carousels date back to the 1800s and originated in Germany. They are thought to have been inspired by windmills. Early versions were very simple, but over time, they became more elaborate with...
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What is the hardest natural substance on Earth?
Diamond is the hardest natural substance on Earth. Why is diamond so strong? Diamond is made up of a network of carbon atoms that each form four strong covalent bonds. The strong bonds take a lot of...
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What is the pH Scale?
The pH scale measures how acidic or alkaline a solution is. It ranges between 0 and 14. Acids have a pH of less than 7. Alkalis ( or bases ) have a pH of over 7. pH 7 is neutral. How is pH measured?...
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A Brief History of the Atom
Atoms are tiny particles of matter which make up everything in the universe. Everything you see is made up of atoms. Scientists spent many years trying to understand the structure of the atom, with...
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What is the Periodic Table?
The Periodic Table is a table of all the elements we know about today. Elements are placed in order of atomic number ( number of protons in the nucleus ). The periodic table is a way of listing and...
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Move a wire through ice – ice cutting experiment
Ice is great for lots of science experiments and investigations. It’s cheap, easy to make and always fun to experiment with. Today, we are going to try a cool science trick where a wire cuts through...
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Explosive Science Experiments for Kids
Is there anything more fun than an explosive science experiment? This collection of explosive, fizzy and sometimes messy science activities is sure to appeal to even the most reluctant little...
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Science Experiments you can do in a Jar
Here at Science Sparks, we try to make science as easy and accessible as possible. When I ask people why they don’t do more science at home with children, one of the answers is usually that science...
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What is freezing point depression?
Freezing point depression is when a substance lowers the freezing point of another substance. One example of this is adding salt to water. A solution of salt and water has a lower freezing point than...
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How to lift an ice cube with a string
This science experiment using ice and salt is a fantastic demonstration of why salt is used to de-ice roads. It’s also a fun science magic trick! When salt is spread on the road in winter, it...
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Magic Milk Science Experiment
This easy magic milk science investigation is fantastic fun for kids of all ages. All you need is whole milk, food colouring and a little dish soap to create crazy colour explosions. Older children...
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How to make a lava lamp
Do you know how to make a lava lamp? DIY lava lamps are one of our favourite science experiments as they are super simple to make, can be used over and over again and you can be as creative as you...
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How to make pH indicator with a poinsettia
Do you know you can make a pH indicator with the red leaves from a poinsettia plant? Red poinsettia leaves contain anthocyanins which change colour in the presence of acids or alkalis. Acids have a...
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