Children are naturally curious and want to learn all about the everything around the world. The fun while doing science experiments with kids is to hear their astonishment to literally everything while we do the experiment. If you bring their friend along they won’t stop their “whoas” and “what’s”. Be prepared with all the answers when you plan an experiment with them.
Involving kids in hands on science activities helps them to be curious always, discover new things, analyze and assimilate how things work, ask questions and discuss ideas. It helps them to learn faster since they are involved.
Today we are planning to do a science experiment on “How the fire extinguisher works”. Kids have always been fascinated with community helpers. They are also very curious about disasters. Understanding the know-how of how fire can be extinguished can be very interesting for them, but at the same time also be prepared for tons of questions. I have put down a few question and answers with some fun facts to educate the children on this topic.
1. What is required for fire to burn?
Fire requires oxygen, fuel and heat to burn.
2. How can you put out the fire?
You can put out fire with carbon dioxide, nitrogen, water or cutting out the oxygen supply
3. How does it work?
Carbon dioxide is heavier than oxygen. When you spray the carbon dioxide through the extinguisher, the air is filled with carbon dioxide thus cutting the supply of oxygen, hence helping the fire to put out.
To understand this concept better we carried out an experiment with baking soda and vinegar. You can have a look at the video or read the steps to understand it.
When baking soda and vinegar combine their reaction creates carbonic acid which converts to carbon dioxide and water immediately. That’s also the reason why we see a bit of bubbles during the experiment. Since carbon dioxide CO2 is heavy it fills the container and pushes out all the other gases. This means that the flame doesn’t get oxygen and it burns out due to lack of oxygen.
This Science Experiment is easy with all the material available at home and it teaches children basics about mixing gases and “how to extinguish fire” eventually encouraging them to become little scientists!