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Hello everyone!

It's @happycrazycon and @littledrummerboy again. We are sick! But we decided we have to do something to cheer ourselves up instead of feeling all gloomy!

What we bring to you today is based on the principle of the neutralization of acid and base. I have been revising this chapter all over again with my students in Chemistry Science. They actually got very fed up with all the equations but I am trying to insert some fun for them. So, I tried this at home first before I go to them.

First Experiment - Volcano Making!

It's just baking soda mixed with apple cider vinegar that's added with a drop of red colouring to enhance the effect. The neutralization reaction releases carbon dioxide gas which resulted in the bubbling.

This experiment is something @littledrummerboy is very familiar with, and everytime he watches someome else doing it, he says, "I have done it before!"

Second Experiment - Writing and Revealing a Secret Message

There are many ways of writing a secret message, including using heat to reveal. What we are doing is preparing 1 part of baking soda to 2 parts of water as the invisible ink.

Leave it to completely dry. Best to leave overnight, if can.

Then, use grape juice (as concentrate as possible) as the pH indicator to paint over the whole picture.

What happened is:

The message will appear in a different color. The grape juice acts as a pH indicator that changes color when it reacts with the sodium bicarbonate of baking soda, which is a base. Source

I read somewhere that the baking soda which is also called the sodium bicarbonate breaks the cellulose of the paper too. Baking soda is good to use because it is safe for children. Grape juice has very mild acetic acid so it is not corrosive for children to handle too.

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Okay I am on the hunt of looking for easy experiments to do at home to induce scientific learning at home, though I don't know how much he can absorb in now, more for the fun of it. I too enjoy myself as I used to be very enthusiastic about experiments. Sometimes they fail too, like I have been finding different grape juice, hopefully to reveal the message better.

Forgive my look and my covered up voice because of the facial mask. Maybe it made us look more like a mad scientist.

Are there experiments you do at home with your children? Share with me, I am so interested to know!!!!

Thank you for watching. I do hope the next time when we meet again, we are no longer sick. Sorry for the lighting of the video, as I wanted to minimize mess, so we did the volcano in the balcony and then we proceeded with the rest of the video at night, which we don't have very good lighting at home.

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