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Science Experiments to try at Home

Simple science experiments written by secondary students for primary students to do at home.

Simple science experiments written by secondary students for primary students to do at home.

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Warro! It is your turn now <strong>to</strong> be the teacher. Wh<strong>at</strong> is<br />

causing the eruption?<br />

DrM’s explan<strong>at</strong>ion<br />

Eruption<br />

The bicarbon<strong>at</strong>e of soda is an alkali and will react with the acidic vinegar<br />

<strong>to</strong> make bubbles of carbon dioxide gas. The soap you added earlier will<br />

help the mixture <strong>to</strong> froth up even more with the bubbles and you will get<br />

lots of foam.<br />

Peer review<br />

Hi, I am Ogopogo from Canada<br />

This was quite messy but luckily, I<br />

did it on the grass so I just squirted w<strong>at</strong>er <strong>at</strong> it from my nose <strong>to</strong><br />

hose it down when I had finished.<br />

My question is: Why do you add in soap. Wh<strong>at</strong> difference does it<br />

make <strong>to</strong> the eruption? Wh<strong>at</strong> is your question?<br />

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