Little scientist experiments: dancing raisins
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- Published on Monday, 29 October 2012 08:30
- Last Updated on 01 February 2023
- Monica Costa
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Here is another great scientific experiment for our little scientists. Little scientist Diego called this experiment dancing raisins. He learnt that the fizz in fizzy drink is called carbon dioxide. Carbon dioxide is a gas that creates bubbles.
Tools: tweezers, magnifying glass, beaker
Extras: clear fizzy drink, raisins
Key science concept: the fizz in fizzy drink is called carbon dioxide. Carbon dioxide is a gas that creates bubbles.
The scientific explanation
Carbon dioxide (CO2) is a chemical compound. It is a gas at room temperature. It is made of one carbon and two oxygen atoms. People and animals release carbon dioxide when they breathe out. Also, every time something organic is burnt (or a fire is made), it makes carbon dioxide. Plants use carbon dioxide to make food. This process is called photosynthesis. The properties of carbon dioxide were studied by the Scottish scientist Joseph Black in the 1750s. Carbon dioxide is a greenhouse gas. Greenhouse gases trap heat energy. Greenhouse gases change the climate and weather on our planet, Earth. This is called climate change. Greenhouse gases are a cause of global warming, the rise of Earth surface temperature.
Tiny bubbles from fizzy drink collect on the raisins and cause the raisins to float to the top. When the bubbles pop, the raisins sink again.
For more little scientist’s experiments click on the links below:
Monica Costa founded London Mums in September 2006 after her son Diego’s birth together with a group of mothers who felt the need of meeting up regularly to share the challenges and joys of motherhood in metropolitan and multicultural London. London Mums is the FREE and independent peer support group for mums and mumpreneurs based in London https://londonmumsmagazine.com and you can connect on Twitter @londonmums