Been seeing this on kids’ activities blogs but I had no idea what hydrogen peroxide was or where to get it. Then one day, I happened to notice an innocent bottle of hydrogen peroxide in the pharmacy! (I was buying rubbing alcohol for another experiment.) But that bottle was only 3%, and elephant toothpaste requires a minimum of 6% according to Preschool Powol Packets (please click on this link for the method). I started to keep a lookout whenever I passed by any pharmacy, and finally I got lucky during a family outing to Johor Bahru! OK, anyway, this long intro is just to warn you that it might not be that easy to find 6% hydrogen peroxide in Singapore. If you do, please let me know!
What’s needed: hydrogen peroxide, dishwashing liquid, food colouring, instant yeast, measuring spoons, empty bottles, warm water
Love his amazement : )
Actually it takes some waiting for the ‘toothpaste’ to reach the top of the bottle. Didi decides to pour out the solution and start playing now!
Mummy says it’s toothpaste.. so of course must SQUEEZE!
Time to mix and experiment
Preschool Powol Packets explains the chemical reaction, and the product is just water, oxygen and soap so it’s safe for kids to play with. I gave Meimei her own bottle of ‘toothpaste’ too, but she was not very interested. Can you spot her in the photos above? Hee hee :p
We have done this activity quite a few times – it’s one of the boys’ favorites! I first learnt about it on Play At Home Mom, which is definitely my favouritest blog. They even have a compliation of nine variations of playing with baking soda and vinegar. We have tried a few, but that was before I started this blog. Now that we are finally into homeschooling full-steam, I am so happy to resume our play activities : )
What I used
Played at corridor
Kor Kor played with it very differently from Didi – very slow, very meticulous, very observant
Before adding colouring
Bubble bubble bubble!
Going wild with the ingredients
The boys love love love this!
Wanna try it with your kid too? Prepare a lot of vinegar! Have fun!
I bought a new ‘gadget’ that makes ice spheres! Decided to let the boys play with it but didn’t have any ideas how to play with it, so I just gave them an ice ball each in a bucket. When Kor Kor saw it, he said, “It’s Earth, right?” Lightbulb went on above my head!
Green & blue food coloring in pipette
Scientists at work!
This really looks like Earth, doesn’t it?